Chapter 23. Transition Metals and Coordination Chemistry ( 전이금속과배위화학 ) Lecture Presentation

Size: px
Start display at page:

Download "Chapter 23. Transition Metals and Coordination Chemistry ( 전이금속과배위화학 ) Lecture Presentation"

Transcription

1 Lecture Presentation Chapter 23 and Coordination Chemistry ( 전이금속과배위화학 ) John D. Bookstaver St. Charles Community College Cottleville, MO 1

2 Most metals, including transition metals, are found in solid inorganic compounds known as minerals. Minerals are named by common, not chemical, names. Minerals( 광물 ) 2

3 Atomic Radii( 원자반경 ) As one goes from left to right across a row, we see a decrease, then an increase in the radius of transition metals. Atomic Radii On the one hand, increasing effective nuclear charge tends to make atoms smaller. On the other hand, the strongest (and, therefore, shortest) metallic bonds are found in the center of the transition metals. 3

4 Traits of Because most transition metals have only partially occupied d subshells, the metals and/or their compounds often Have more than one oxidation state. 4

5 Traits of Because most transition metals have only partially occupied d subshells, the metals and/or their compounds often Have more than one oxidation state, Are pigmented. Ni 2+, Co 2+,Zn 2+ Traits of Because most transition metals have only partially occupied d subshells, the metals and/or their compounds often Have more than one oxidation i state, Are pigmented, Have magnetic properties. 5

6 Paramagnetism( 상자기성 ) Paramagnetism, as you recall from Chapter 9, results from an atom having unpaired electrons. Such atoms, then, show attraction to a magnet placed close by. 6

7 Ferromagnetism( 강자기성 ) In ferromagnetic substances, the unpaired spins influence each other to align in the same direction, thereby exhibiting strong attractions to an external magnetic field. Such species are permanent magnets. Antiferromagnetism( 반강자성 ) Antiferromagnetic substances have unpaired spins on adjacent atoms that align in opposing directions. These magnetic fields tend to cancel each other. 7

8 Ferrimagnetism( 준강자성 ) Ferrimagnetic substances have spins that align opposite each other, but the spins are not equal, so there is a net magnetic field. Examples are NiMnO 3, Y 3 Fe 5 O 12, and Fe 3 O 4. Complexes( 착물 ) Commonly, transition metals can have molecules or ions that bond to them. These give rise to complex ions ( 착이온 ) or coordination compounds ( 배위화합물 ). [Co(NH 3 ) 4 Cl 2 ] + 8

9 Ligands( 리간드 ) The molecules or ions that bind to the central metal are called ligands (from the Latin ligare, meaning to bind ). Coordination( 배위 ) One of the properties that has led to the fascination with complexes and transition metals is the wide range of stunning ( 근사한 ) colors found in them. 9

10 Werner Theory (Werner 이론 ) The Swiss chemist Alfred Werner deduced that there was a difference between the oxidation number of a metal and the number of ligands it took on, which he called the coordination number( 배위수 ). Werner Theory Thus, although the first two complexes in the table above each have 3 chlorines, in the first all three serve as anions, while in the second one of the chlorines is tightly bound to the cobalt and the other two are counterions. 10

11 The Metal Ligand Bond( 금속 - 리간드결합 ) The reaction between a metal and a ligand is a reaction between a Lewis acid (the metal) and Lewis base (the ligand). The new complex has distinct physical and chemical properties. Coordination Numbers( 배위수 ) The coordination number of a metal depends upon the size of the metal and the size of the ligands. While iron(iii) can bind to 6 fluorides, it can only accommodate 4 of the larger chlorides. 11

12 Common Ligands The table above contains some ligands commonly found in complexes. 12

13 Common Ligands Monodentate ligands coordinate to one site on the metal, bidentate to two, and so forth. Common Ligands Bi and polydentate ligands are also called chelating agents( 킬레이트시약 ). 13

14 [Co(EDTA] - 착이온 Chelates in Biological Systems There are many transition metals that are vital to human life. Several of these are bound to chelating agents. 14

15 Chelates in Biological Systems For instance, the iron in hemoglobin carries O 2 and CO 2 through the blood. Carbon monoxide and cyanide are poisonous because they will bind more tightly to the iron than will oxygen. Nomenclature in Coordination Chemistry ( 배위화학에서의명명법 ) 1. In naming complexes that are salts, the name of the cation is given before the name of the anion. 15

16 Nomenclature in Coordination Chemistry 2. In naming complex ions or molecules, l the ligands are named before the metal. Ligands are listed in alphabetical order, regardless of their charges. Nomenclature in Coordination Chemistry 3. The names of anionic ligands end in the letter o, but electrically neutral ligands ordinarily bear the name of the molecules. 16

17 Nomenclature in Coordination Chemistry 4. Greek prefixes (di-, tri-, tetra-, etc.) are used to indicate the number of each kind of ligand when more than one is present. If the ligand contains a Greek prefix or is polydentate, the prefixes bis-, tris-, tetrakis-, t etc. are used and the ligand name is placed in parentheses. Nomenclature in Coordination Chemistry 5. If the complex is an anion, its name ends in -ate. 6. The oxidation number of the metal is given in parentheses in Roman numerals following the name of the metal. 17

18 Isomers ( 이성질체 ) Isomers have the same molecular formula but a different arrangement of atoms. There are two main subgroupings: structural isomers and stereoisomers. Linkage Isomers ( 결합이성질체 ) In linkage isomers the ligand is bound to the metal by a different atom. 18

19 Coordination Sphere Isomers ( 배위권이성질체 ) Coordination sphere isomers differ in what ligands are bound to the metal and which fall outside the coordination sphere. For example, CrCl 3 (H 2 O) 6 exists as [Cr(H 2 O) 6 ]Cl 3, [Cr(H 2 O) 5 Cl]Cl 2 H 2 O, or [Cr(H 2 O) 4 Cl 2 ]Cl 2H 2 O. Geometric Isomers ( 기하이성질체 ) [Pt(NH 3 ) 2 Cl 2 ] In geometric isomers, the ligands have a different spatial relationship. In the complexes above, the chlorines can be adjacent to each other (cis) or opposite each other (trans). 19

20 Optical Isomers ( 광학이성질체 ) Optical isomers, or enantiomers, are nonsuperimposable mirror images of one another. Color The complex [Ti(H 2 O) 6 ] 3+ at the left appears red-violet because those are the wavelengths of visible light not absorbed by the complex. Many complexes are pigmented because they absorb in the visible part of the spectrum. 20

21 Crystal-Field Theory ( 결정장이론 ) As was mentioned earlier, ligands are Lewis bases that are attracted to a Lewis acid (the metal). But d electrons on the metal would repel the ligand. 21

22 Crystal-Field Theory Therefore, the d orbitals on a metal in a complex would not be degenerate. Those that point toward ligands would be higher in energy than those that do not. 22

23 Crystal-Field Theory The energy gap between d orbitals often corresponds to the energy in a photon of visible light. Crystal-Field Theory The stronger the crystal-field strength of the ligand, the larger the energy gap between d orbitals, and the shorter the wavelength of light absorbed by the complex. 23

24 Crystal-Field Theory The spectrochemical series( 분광화학적계열 ) ranks ligands in order of their ability to increase the energy gap between d orbitals. 24

25 고스핀 저스핀 25

26 Tetrahedral 26

27 27

Complexes. Commonly, transition metals can have molecules or ions that bond to them. These give rise to complex ions or coordination compounds.

Complexes. Commonly, transition metals can have molecules or ions that bond to them. These give rise to complex ions or coordination compounds. Complexes Commonly, transition metals can have molecules or ions that bond to them. These give rise to complex ions or coordination compounds. Coordination Compounds Coordinate covalent bond both electrons

More information

Chemistry: The Central Science. Chapter 24: Chemistry of Coordination Compounds

Chemistry: The Central Science. Chapter 24: Chemistry of Coordination Compounds Chemistry: The Central Science Chapter 24: Chemistry of Coordination Compounds Metal compounds with complex assemblies of metals surrounded by molecules and ions are called coordination compounds 24.3:

More information

Chapter 23 Transition Metals and Coordination Chemistry

Chapter 23 Transition Metals and Coordination Chemistry Chapter 23 Transition Metals and Coordination Chemistry Many compounds of transition metals are colored (used in paints and to stain glass; produce color in gemstones). 23.1 The Transition Metals Most

More information

Ch. 23: Transition metals and Coordination Chemistry

Ch. 23: Transition metals and Coordination Chemistry Ch. 23: Transition metals and Coordination Chemistry Learning goals and key skills: Determine the oxidation number and number of d electrons for metal ions in complexes Name coordination compounds given

More information

Chapter 23 Transition Metals and Coordination Chemistry

Chapter 23 Transition Metals and Coordination Chemistry Lecture Presentation Chapter 23 and Coordination Chemistry James F. Kirby Quinnipiac University Hamden, CT Color Catalysts Magnets 23.1 The 1036 Why are of Interest? Biological roles Coordination compounds

More information

Chapter 21: Transition Metals and Coordination Chemistry

Chapter 21: Transition Metals and Coordination Chemistry Chapter 21: Transition Metals and Coordination Chemistry Mg, Cr, V, Co Pt Fe complexes O2 Mo and Fe complexes: nitrogen fixation Zn: 150 Cu, Fe: Co: B12 21.1 Transition Metals show great similarities within

More information

Chemistry 201: General Chemistry II - Lecture

Chemistry 201: General Chemistry II - Lecture Chemistry 201: General Chemistry II - Lecture Dr. Namphol Sinkaset Chapter 23 Study Guide Concepts 1. In the transition metals, the ns orbital fills before the (n-1)d orbitals. However, the ns orbital

More information

Chapter 24. Transition Metals and Coordination Compounds. Lecture Presentation. Sherril Soman Grand Valley State University

Chapter 24. Transition Metals and Coordination Compounds. Lecture Presentation. Sherril Soman Grand Valley State University Lecture Presentation Chapter 24 Transition Metals and Coordination Compounds Sherril Soman Grand Valley State University Gemstones The colors of rubies and emeralds are both due to the presence of Cr 3+

More information

Transition Metals and Complex Ion Chemistry

Transition Metals and Complex Ion Chemistry Transition Metals and mplex Ion Chemistry Definitions mplex ion - a metal ion with Lewis bases attached to it through coordinate covalent bonds. A mplex (or ordination compound) is a compound consisting

More information

Chapter 21 Transition Metals and Coordination Chemistry

Chapter 21 Transition Metals and Coordination Chemistry Chapter 21 Transition Metals and Coordination Chemistry Some History In the 19 th century, chemists started to prepare colored compounds containing transition metals and other substances like ammonia,

More information

Chapter 21 Transition Metals and Coordination Chemistry

Chapter 21 Transition Metals and Coordination Chemistry Chapter 21 Transition Metals and Coordination Chemistry Some History In the 19 th century, chemists started to prepare colored compounds containing transition metals and other substances like ammonia,

More information

Chapter 25 Transition Metals and Coordination Compounds Part 1

Chapter 25 Transition Metals and Coordination Compounds Part 1 Chapter 25 Transition Metals and Coordination Compounds Part 1 Introduction The transition elements are defined as: those metallic elements that have a partially but incompletely filled d subshell or easily

More information

Transition Metals and Coordination Chemistry

Transition Metals and Coordination Chemistry Transition Metals and Coordination Chemistry Transition Metals Similarities within a given period and within a given group. Last electrons added are inner electrons (d s, f s). 20_431 Ce Th Pr Pa d U

More information

Chap 24. Transition Metals and Coordination Compounds. Hsu Fu-Yin

Chap 24. Transition Metals and Coordination Compounds. Hsu Fu-Yin Chap 24. Transition Metals and Coordination Compounds Hsu Fu-Yin Gemstones Rubies are deep red and emeralds are brilliant green, yet the color of both gemstones is caused by the same ion Cr 3+ ions. Rubies

More information

Coordination Compounds. Compounds containing Transition Metals

Coordination Compounds. Compounds containing Transition Metals Coordination Compounds Compounds containing Transition Metals Coordination Compounds Transition Metals Sc 6 Cu 1st row Y 6 Ag 2nd row La 6 Au 3rd row Properties of metals Not as reactive as group 1 or

More information

Chemistry of Transition Metals. Part 1. General Considerations

Chemistry of Transition Metals. Part 1. General Considerations Chemistry of Transition Metals Part 1. General Considerations Filling of 3d, 4d, and 5d shells In s- and p-block, electrons added to outer shell In I d-block, electrons added d to penultimate t shell expanding

More information

Transition Metal Chemistry and Coordination Compounds

Transition Metal Chemistry and Coordination Compounds Transition Metal Chemistry and Coordination Compounds Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 1 Properties of the Transition Metals All transition metals

More information

Chapter 23. Transition Metals and Coordination Chemistry

Chapter 23. Transition Metals and Coordination Chemistry Chapter 23 Transition Metals and Coordination Chemistry The Transition Metals: Exact Definition Transition metal: An element whose atom has an incomplete d subshell or which can give rise to cations with

More information

Transition Metals and Coordination Chemistry. 1. In the transition metals section chemical similarities are found within a and across a.

Transition Metals and Coordination Chemistry. 1. In the transition metals section chemical similarities are found within a and across a. Transition Metals and Coordination Chemistry 1. In the transition metals section chemical similarities are found within a and across a. 2. What are 2 transition metals that have unique electron configurations?

More information

Chem 1102 Semester 2, 2011!

Chem 1102 Semester 2, 2011! Chem 1102 Semester 2, 2011! 1) Naming Ligands: The normal chemical name is used unless the ligand is negatively charged in which cases o is used as the suffix. Name Formula Neutral Ligands Aqua H 2 O Ammine

More information

Inorganic Pharmaceutical Chemistry. Coordination compounds

Inorganic Pharmaceutical Chemistry. Coordination compounds Inorganic Pharmaceutical Chemistry Lecture No. 5 Date : 22/11 /2012 Dr. Mohammed Hamed --------------------------------------------------------------------------------------------------------------------------------------

More information

Chapter 24. Chemistry of Coordination Compounds

Chapter 24. Chemistry of Coordination Compounds Chapter 24. Chemistry of Coordination Compounds 24.1 Metal Complexes Metal complexes (or complexes) have a metal ion (which can have a 0 oxidation state) bonded to a number of molecules or ions. If the

More information

UNIT IX COORDINATION COMPOUNDS ( 3 : MARKS)

UNIT IX COORDINATION COMPOUNDS ( 3 : MARKS) TEACHER ORIENTED UNIT IX COORDINATION COMPOUNDS ( 3 : MARKS) 1) Coordination compounds - introduction, 2) Ligands, 3) Coordination number, 4) Colour, 5) Magnetic properties and shapes, 6) IUPAC nomenclature

More information

The Transition Elements and Coordination Compounds

The Transition Elements and Coordination Compounds Chapter 22 The Transition Elements and Coordination Compounds Concept Check 22.1 Another complex studied by Werner had a composition corresponding to the formula PtCl 4 2KCl. From electrical-conductance

More information

Chemistry 1B. Fall Lectures Coordination Chemistry

Chemistry 1B. Fall Lectures Coordination Chemistry Chemistry 1B Fall 2013 Lectures 13-14 Coordination Chemistry 1 LISTEN UP!!! WE WILL ONLY COVER LIMITED PARTS OF CHAPTER 19 (940-944;952-954;963-970) 2 good reasons for studying coordination chemistry a

More information

Metallic best heat conductor of heat and e the second. Ionic compounds often contain more than one oxidation state

Metallic best heat conductor of heat and e the second. Ionic compounds often contain more than one oxidation state 21 Transition metals and coordination chemistry Transition metals in general Importance Cr stainless steel Mn steelmaking Pt, Pd catalysts Fe transport of oygen nitrogen fiation (Mo also) Zn catalyst in

More information

Downloaded from

Downloaded from 1 Class XII: Chemistry Chapter 9: Coordination Compounds 1. Difference between coordination compound and double bond: Coordination compound A coordination compound contains a central metal atom or ion

More information

Transition Metal Chemistry

Transition Metal Chemistry APPLIED INORGANIC CHEMISTRY FOR CHEMICAL ENGINEERS Transition Metal Chemistry CHEM261HC/SS1/01 Periodic table Elements are divided into four categories Main-group elements Transition metals 1. Main-group

More information

Transition Metal Chemistry

Transition Metal Chemistry APPLIED INORGANIC CHEMISTRY FOR CHEMICAL ENGINEERS Transition Metal Chemistry CHEM261HC/SS1/01 Periodic table Elements are divided into four categories 1.Main-group elements 2.Transition metals 3.Lanthanides

More information

Chemistry 1B. Fall Lectures Coordination Chemistry

Chemistry 1B. Fall Lectures Coordination Chemistry Chemistry 1B Fall 2012 Lectures 13-14 Coordination Chemistry 1 LISTEN UP!!! WE WILL ONLY COVER LIMITED PARTS OF CHAPTER 19 (pp. 933-937; 946-948; 958-966) [940-944;952-954;963-970] 7th 2 good reasons for

More information

Chapter 19: Phenomena

Chapter 19: Phenomena Chapter 19: Phenomena Phenomena: Transition metal complexes are often used in paints for coloration due to their wide range of colors. Using the data below identify any patterns in the colors of compounds.

More information

Chemistry 1B. Fall Topics Lectures Coordination Chemistry

Chemistry 1B. Fall Topics Lectures Coordination Chemistry Chemistry 1B Fall 2016 Topics Lectures 17-18 Coordination Chemistry 1 LISTEN UP!!! WE WILL ONLY COVER LIMITED PARTS OF CHAPTER 19 (940-944;952-954;963-970) 2 good reasons for studying coordination chemistry

More information

Chapter 19: Phenomena

Chapter 19: Phenomena Chapter 19: Phenomena Phenomena: Transition metal complexes are often used in paints for coloration due to their wide range of colors. Using the data below identify any patterns in the colors of compounds.

More information

Coordination chemistry and organometallics

Coordination chemistry and organometallics Coordination chemistry and organometallics Double salt and Complex salt A salt that keeps its identity only in solid state is called a double salt. In solution they dissociate into component ions. E.g.:

More information

Transition Metal Chemistry

Transition Metal Chemistry APPLIED INORGANIC CHEMISTRY FOR CHEMICAL ENGINEERS Transition Metal Chemistry CHEM261HC/SS1/01 Periodic Table Elements are divided into four categories Main-group elements (S-Block) Transition metals 1.

More information

Topics Coordination Complexes Chemistry 1B-AL, Fall 2016

Topics Coordination Complexes Chemistry 1B-AL, Fall 2016 Chemistry 1B Fall 2016 Topics Lectures 17-18 Coordination Chemistry 1 LISTEN UP!!! WE WILL ONLY COVER LIMITED PARTS OF CHAPTER 19 (940-944;952-954;963-970) 2 Page 1 good reasons for studying coordination

More information

Transition Metal Complexes

Transition Metal Complexes 2P32 Principles of Inorganic Chemistry Dr. M. Pilkington Lecture 4 - Transition Metal Complexes Transition Metal Complexes: Definitions and Terminology. Isomerism in Transition Metal Complexes: Structural

More information

Transition Metal Chemistry and Coordination Compounds

Transition Metal Chemistry and Coordination Compounds Alfred Werner FRENCH-BORN SWISS CHEMIST 1866 19191919 Winner of the 1913 Nobel Prize in chemistry, "in recognition of his work on the linkage of atoms in molecules by which he has thrown new light on earlier

More information

CHEMISTRY Topic #3: Colour in Chemistry Fall 2017 Dr. Susan Findlay See Exercises 12.1 to Fe 2 O 3 Cr 2 O 3 Co 2 O 3 TiO 2.

CHEMISTRY Topic #3: Colour in Chemistry Fall 2017 Dr. Susan Findlay See Exercises 12.1 to Fe 2 O 3 Cr 2 O 3 Co 2 O 3 TiO 2. CdS Fe 2 3 Cr 2 3 Co 2 3 Ti 2 Mn 3 (P 4 ) 2 Fe 3+ Co 2+ Ni 2+ Cu 2+ Zn 2+ CHEMISTRY 1000 iron copper Topic #3: Colour in Chemistry Fall 2017 Dr. Susan Findlay See Exercises 12.1 to 12.3 Cr 2 3 Cu 2 Co

More information

11/9/15. Intermolecular hydrogen bond: Hydrogen bond: Intramolecular hydrogen bond: Induced dipole moment, polarisability

11/9/15. Intermolecular hydrogen bond: Hydrogen bond: Intramolecular hydrogen bond: Induced dipole moment, polarisability Induced dipole moment, polarisability in electric field: Van der Waals forces Intermolecular forces other than covalent bonds or other than electrostatic interactions of ions induced d. moment µ * = α

More information

Structure of Coordination Compounds

Structure of Coordination Compounds Chapter 22 COORDINATION CHEMISTRY (Part II) Dr. Al Saadi 1 Structure of Coordination Compounds The geometry of coordination compounds plays a significant role in determining their properties. The structure

More information

Electron Configurations: Assigning each electron in an atom to the energy level and sublevel it occupies in the atom. Number of Electrons

Electron Configurations: Assigning each electron in an atom to the energy level and sublevel it occupies in the atom. Number of Electrons First some terms and more information about the structure of the atom: 1) Energy level is no longer an orbit but more like a boundary or maximum distance from the nucleus that electrons occupy. 1, 2, 3

More information

2 electrons 2s 2 2p 6. 8 electrons (octet rule) 3s 2 3p 6 3d 10

2 electrons 2s 2 2p 6. 8 electrons (octet rule) 3s 2 3p 6 3d 10 Main Group and Transition Metal Chemistry: Reading: Moore chapter 22, sections 22.1, 22.6 Questions for Review and Thought: 14, 16, 24, 26, 30, 34, 36, 42, 48, 50, 58, 60. Key ncepts and Skills: definition

More information

Crystal Field Theory. 2. Show the interaction between the d-orbital and the negative point charge ligands

Crystal Field Theory. 2. Show the interaction between the d-orbital and the negative point charge ligands 1. What is the crystal field model? Crystal Field Theory It is a model that views complex ions as being held together ionically (this is not actually the case, but it allows for a simplification of the

More information

CBSE Class-12 Chemistry Quick Revision Notes Chapter-09: Co-ordination Compounds

CBSE Class-12 Chemistry Quick Revision Notes Chapter-09: Co-ordination Compounds CBSE Class-12 Chemistry Quick Revision Notes Chapter-09: Co-ordination Compounds Co-ordination compounds: a) A coordination compound contains a central metal atom or ion surrounded by number of oppositely

More information

Drawing Lewis Structures

Drawing Lewis Structures Chapter 2 - Basic Concepts: molecules Bonding models: Valence-Bond Theory (VB) and Molecular Orbital Theory (MO) Lewis acids and bases When both of the electrons in the covalent bond formed by a Lewis

More information

Ligands: an ion or molecule capable of donating a pair of electrons to the central atom via a donor atom.

Ligands: an ion or molecule capable of donating a pair of electrons to the central atom via a donor atom. Ligands: an ion or molecule capable of donating a pair of electrons to the central atom via a donor atom. Unidentate ligands: Ligands with only one donor atom, e.g. NH3, Cl -, F - etc. Bidentate ligands:

More information

I. Multiple Choice Questions (Type-I) ] 2+, logk = [Cu(NH 3 ) 4 O) 4. ] 2+, logk = 8.9

I. Multiple Choice Questions (Type-I) ] 2+, logk = [Cu(NH 3 ) 4 O) 4. ] 2+, logk = 8.9 Unit 9 COORDINATION COORDINA COMPOUNDS I. Multiple Choice Questions (Type-I) 1. Which of the following complexes formed by Cu 2+ ions is most stable? (i) Cu 2+ + 4NH 3 [Cu(NH 3 ] 2+, logk = 11.6 (ii) Cu

More information

Practice Problems: Transition Elements and Coordination Chemistry. # Ligands Coordination # Oxidation #

Practice Problems: Transition Elements and Coordination Chemistry. # Ligands Coordination # Oxidation # Practice Problems: Transition Elements and Coordination Chemistry 1. Complete the valence level orbital notation for the following monatomic ions. KEY CHEM 1B a) Ag + b) Co 3+ 4d 5s 3d 4s c) Fe 3+ d) Cr

More information

Periodicity HL (answers) IB CHEMISTRY HL

Periodicity HL (answers) IB CHEMISTRY HL Periodicity HL (answers) IB CHEMISTRY HL 13.1 First row d-block elements Understandings: Transition elements have variable oxidation states, form complex ions with ligands, have coloured compounds, and

More information

Frequency of scores on exam 2. Grade = n(right)/28 x 100

Frequency of scores on exam 2. Grade = n(right)/28 x 100 1 Frequency of scores on exam 2 Grade = n(right)/28 x 100 2 Photochemistry and biology Photons can be toxic (cause DNA bases to dimerize) Photons can be therapeutic: phototherapy Photons can track thoughts,

More information

Answer Key, Problem Set 11

Answer Key, Problem Set 11 Chemistry 122 Mines, Spring 2018 Answer Key, Problem Set 11 NOTE: Tro always writes the formulas of complex ions in brackets, even when they are not part of a coordination compound (i.e., even if no counterions

More information

Transition Metal Elements and Their Coordination Compounds

Transition Metal Elements and Their Coordination Compounds Fernando O. Raineri Office Hours: MWF 9:30-10:30 AM Room 519 Tue. 3:00-5:00 CLC (lobby). Transition Metal Elements and Their Coordination Compounds 2 Compounds. Naming and Geometry. 1 3 p.1046a 4 Fig.

More information

TRANSITION METAL COMPLEXES Chapter 25, VB/CF Handout

TRANSITION METAL COMPLEXES Chapter 25, VB/CF Handout TRANSITION METAL COMPLEXES Chapter 25, VB/CF Handout The energy of a covalent bond is largely the energy of resonance of two electrons between two atoms the resonance energy increases in magnitude with

More information

TM compounds. TM magnetism

TM compounds. TM magnetism TM compounds TM compounds are often coloured. Colours originate from electronic transitions between different dorbitals of the same principle QN. Wait.aren t all d orbitals the same energy? We will learn

More information

Q.1 Predict what will happen when SiCl 4 is added to water.

Q.1 Predict what will happen when SiCl 4 is added to water. Transition etals 2815 1 The aqueous chemistry of cations ydrolysis when salts dissolve in water the ions are stabilised by polar water molecules hydrolysis can occur and the resulting solution can become

More information

CHEM N-3 November Transition metals are often found in coordination complexes such as [NiCl 4 ] 2. What is a complex?

CHEM N-3 November Transition metals are often found in coordination complexes such as [NiCl 4 ] 2. What is a complex? CHEM100 014-N-3 November 014 Transition s are often found in coordination complexes such as [NiCl 4 ]. What is a complex? 8 A complex contains a cation surrounded by ligands which bond to the cation using

More information

HL Topics 3 and 13 : Periodicity (2)

HL Topics 3 and 13 : Periodicity (2) HL Topics 3 and 13 : Periodicity (2) For each question choose the answer you consider to be the best. 1. An element is in period 3 and group 5 of the periodic table. How many electrons are present in the

More information

Coordination Inorganic Chemistry

Coordination Inorganic Chemistry Coordination Inorganic Chemistry Practice Exam Coordination Chem Name (last) (irst) Read all questions before you start. Show all work and explain your answers to receive full credit. Report all numerical

More information

4) Give the total number of electron domains and the hybridization for Xe in XeF 4. a) 6, sp 3 d 2 b) 4, sp 2 c) 5, sp 3 d d) 6, sp 3 e) 4, sp 3

4) Give the total number of electron domains and the hybridization for Xe in XeF 4. a) 6, sp 3 d 2 b) 4, sp 2 c) 5, sp 3 d d) 6, sp 3 e) 4, sp 3 1) The hybridization that allows the formation of 2 π bonds from unhybridized p-orbitals is a) sp b) sp 2 c) sp 3 d) sp 3 d e) sp 3 d 2 2) Electrons in bonds may become delocalized between more than two

More information

Transition Elements. pranjoto utomo

Transition Elements. pranjoto utomo Transition Elements pranjoto utomo Definition What is transition metal? One of which forms one or more stable ions which have incompletely filled d orbitals. 30Zn? Definition Zink is not transition elements

More information

Chapter 14 Inorganic Chemistry

Chapter 14 Inorganic Chemistry Chapter 14 Inorganic Chemistry Introduction Organic chemistry is based on the chemistry of carbon, so that leaves the chemistry of over 100 other elements to be characterized as inorganic chemistry. The

More information

Chapter 23. Transition Metals and Coordination Chemistry

Chapter 23. Transition Metals and Coordination Chemistry 336 Chapter 23 Chapter 23. Transition Metals and Coordination Chemistry Common Student Misconceptions Students have difficulty naming coordination complexes. Students often think that chirality is only

More information

Topics Coordination Complexes Chemistry 1B-AL, Fall 2016

Topics Coordination Complexes Chemistry 1B-AL, Fall 2016 Chemistry 1B Fall 2016 LISTEN UP!!! Topics Lectures 17-18 Coordination Chemistry WE WILL ONLY COVER LIMITED PARTS OF CAPTER 19 (940-944;952-954;963-970) 1 2 good reasons for studying coordination chemistry

More information

Coordination Compounds

Coordination Compounds Coordination Compounds 1. What is a coordination compound composed of? a. Metal Ion b. Ligand c. Counter Ion 2. What is a complex ion? The metal ion and ligand combination. 3. What is a counter ion? An

More information

Bonding in Transition Metal Compounds Oxidation States and Bonding

Bonding in Transition Metal Compounds Oxidation States and Bonding Bonding in Transition Metal ompounds Oxidation States and Bonding! Transition metals tend to have configurations (n 1)d x ns 2 or (n 1)d x ns 1, Pd having 4d 10 5s 0. K All lose ns electrons first, before

More information

UNIT 9 Topic: Coordination Compounds

UNIT 9 Topic: Coordination Compounds UNIT 9 Topic: Coordination Compounds 1. State the postulates of Werner s theory of coordination compounds. Postulates: 1. Central metal ion in a complex shows two types of valences - primary valence and

More information

Lecture 11: Transition metals (1) Basics and magnetism

Lecture 11: Transition metals (1) Basics and magnetism Lecture 11: Transition metals (1) Basics and magnetism Oxidation states in transition metal compounds Ligand field theory Magnetism Susceptibility Temperature dependence Magnetic moments Figure: Wikipedia

More information

Some chemistry of the Periodic Table. Electronic configuration and oxidation states of the transition metals

Some chemistry of the Periodic Table. Electronic configuration and oxidation states of the transition metals Some chemistry of the Periodic Table Electronic configuration and oxidation states of the transition metals Electronic configuration The d-block transition metals are defined as metals with an incomplete

More information

The d -Block Elements & Coordination Chemistry

The d -Block Elements & Coordination Chemistry Chapter The d -Block Elements & ordination Chemistry Hill, Petrucci, McCreary & Perry 4 th Ed. The d-block Elements Groups 3-1 in the Periodic chart associated with the filling of the 3d, 4d, 5d electronic

More information

Chapter 10 Practice Problems

Chapter 10 Practice Problems Chapter 10 Practice Problems Q 10.1 0-1 -1-1 S +2 +2 S S +2 0-1 -1-1 0 C in S - 6 6 1 2 1 2 C in S = 6 4 1 4 0 2 C S 6 0 1 8 2 2 Q 10.2 Correct Answer: B Two oxygen atoms will have a formal charge of 1

More information

Introduction to Inorganic Chemistry

Introduction to Inorganic Chemistry Introduction to Inorganic Chemistry What is inorganic chemistry? Inorganic Chemistry Organimetallic Bioinorganic Organic vs Inorganic Introduction to Inorganic Chemistry Organic vs Inorganic Introduction

More information

Chapter 25 Transition Metals and Coordination Compounds Part 2

Chapter 25 Transition Metals and Coordination Compounds Part 2 Chapter 25 Transition Metals and Coordination Compounds Part 2 Bonding in Coordination Compounds Valence Bond Theory Coordinate covalent bond is between: completely filled atomic orbital and an empty atomic

More information

Coordination compounds

Coordination compounds Coordination compounds Multiple choice questions 1. In the complex formation, the central metal atom / ion acts as a) Lewis base b) Bronsted base c) Lewis acid d) Bronsted acid 2. The groups satisfying

More information

Chemistry of Coordination Compounds - Chapter 19

Chemistry of Coordination Compounds - Chapter 19 Page III-19-1 / Chapter Nineteen Lecture Notes Chemistry of Coordination Compounds - Chapter 19 Color Theory Where does the color of objects come from? From the paint covering the object! Where does the

More information

CHAPTER - 9 ORDINATION COMPOUNDS

CHAPTER - 9 ORDINATION COMPOUNDS CHAPTER - 9 CO-O ORDINATION COMPOUNDS Formulas for coordinationn compounds: Tetraamineaquachloridocobalt (III) chloride ---- [Co(NH 3 ) 4 (H 2 O) Cl]Cl 2 Potassium tetrahydroxozincate (II) ------- K 2

More information

Chapter 7 The Structure of Atoms and Periodic Trends

Chapter 7 The Structure of Atoms and Periodic Trends Chapter 7 The Structure of Atoms and Periodic Trends Jeffrey Mack California State University, Sacramento Arrangement of Electrons in Atoms Electrons in atoms are arranged as SHELLS (n) SUBSHELLS (l) ORBITALS

More information

Q.1 Predict what will happen when SiCl 4 is added to water.

Q.1 Predict what will happen when SiCl 4 is added to water. Transition etals F325 1 The aqueous chemistry of cations Hydrolysis when salts dissolve in water the ions are stabilised by polar water molecules hydrolysis can occur and the resulting solution can become

More information

Inorganic Chemistry with Doc M. Day 19. Transition Metals Complexes IV: Spectroscopy

Inorganic Chemistry with Doc M. Day 19. Transition Metals Complexes IV: Spectroscopy Inorganic Chemistry with Doc M. Day 19. Transition Metals Complexes IV: Spectroscopy Topics: 1. The visible spectrum and the d-orbitals 3. Octahedral fields 2. Term symbols and the method of microstates

More information

CO-ORDINATION COMPOUNDS

CO-ORDINATION COMPOUNDS Unit - 9 CO-ORDINATION COMPOUNDS QUESTIONS VSA QUESTIONS (1 - MARK QUESTIONS) 1. Define the term coordination compound? 2. Write the names of counter ions in (i) Hg [Co (SCN and (ii) [Pt(NH 3. 3. Write

More information

Cr(II) or Cr 2+ Consider the octahedral complex Cr[(en) 3 ] 2+ Octahedral complex with 4 d electrons. Octahedral complex with 4 d electrons

Cr(II) or Cr 2+ Consider the octahedral complex Cr[(en) 3 ] 2+ Octahedral complex with 4 d electrons. Octahedral complex with 4 d electrons Cr [Ar] 4s 1 3d 5 Cr 2+ [Ar] 3d 4 Consider the octahedral complex Cr[(en) 3 ] 2+ Cr(II) or Cr 2+ Pairing energy Octahedral complex with 4 d electrons Octahedral complex with 4 d electrons Δ is large Δ

More information

PAPER No.11 : Inorganic Chemistry-II MODULE No.1 : Π-acceptor ligand, metal carbonyls, bonding modes of CO, classification of metal carbonyls

PAPER No.11 : Inorganic Chemistry-II MODULE No.1 : Π-acceptor ligand, metal carbonyls, bonding modes of CO, classification of metal carbonyls Subject Paper No and Title Module No and Title Module Tag 11: INORGANIC CHEMISTRY-III (METAL π- COMPLEXES AND METAL CLUSTERS) 1: π-acidity, Metal carbonyls, their classification and general features CHE_P11_M1

More information

CHEMISTRY - CLUTCH CH.23 - TRANSITION METALS AND COORDINATION COMPOUNDS

CHEMISTRY - CLUTCH CH.23 - TRANSITION METALS AND COORDINATION COMPOUNDS H.23 - TRANSITIN METALS AND RDINATIN MPUNDS!! www.clutchprep.com H.23 - TRANSITIN METALS AND RDINATIN MPUNDS NEPT: THE TRANSITIN METALS The transition metals represent elements found in the block of the

More information

Electronic Spectra and Magnetic Properties of Transition Metal Complexes)

Electronic Spectra and Magnetic Properties of Transition Metal Complexes) Subject Chemistry Paper No and Title Module No and Title Module Tag Paper 7: Inorganic Chemistry-II (Metal-Ligand Bonding, Electronic Spectra and Magnetic Properties of Transition Metal 22: Isomerism part

More information

A molecule s color can depend on oxidation state or liganded state. Example: oscillating clock. Consider the overall reaction: -

A molecule s color can depend on oxidation state or liganded state. Example: oscillating clock. Consider the overall reaction: - 30.1.111 Lecture Summary #30 Transition Metals Topic: Crystal Field Theory and the Spectrochemical Series. Chapter 16 A molecule s color can depend on oxidation state or liganded state. Example: oscillating

More information

Inorganic Chemistry with Doc M. Fall Semester, 2012 Day 16. Transition Metals Complexes: Structure and Isomers

Inorganic Chemistry with Doc M. Fall Semester, 2012 Day 16. Transition Metals Complexes: Structure and Isomers Inorganic Chemistry with Doc M. Fall Semester, 2012 Day 16. Transition Metals Complexes: Structure and Isomers Topics: Name(s): Element: 1. Periodic trends and the transition metals 4. Polydentate ligands

More information

1. [7 points] Which element is oxidized in the reaction below? + O 2 + H 2 O

1. [7 points] Which element is oxidized in the reaction below? + O 2 + H 2 O 1. [7 points] Which element is oxidized in the reaction below? K 2 CrO 4 (aq) + BaCl 2 (aq) BaCrO 4 (s) + 2KCl a. Cl b. Cr c. O d. Ba e. This is not an oxidation-reduction reaction 2. [7 points] What are

More information

CHEM J-2 June 2014

CHEM J-2 June 2014 CHEM1102 2014-J-2 June 2014 Compounds of d-block elements are frequently paramagnetic. Using the box notation to represent atomic orbitals, account for this property in compounds of Co 2+. 2 Co 2+ has

More information

Section 6 Questions from Shriver and Atkins

Section 6 Questions from Shriver and Atkins Section 6 Questions from Shriver and tkins 4.35 Remember, softness increases as you go down a group, and both Zn and Hg are in Group 12. Hg 2+ is a very soft acid, so it is only realistically able to form

More information

Coordination compounds - Isomerism

Coordination compounds - Isomerism Coordination compounds - Isomerism K.Sridharan Dean School of Chemical & Biotechnology SASTRA University Thanjavur 613 401 Page 1 of 9 Table of Contents 1 Types of isomerism... 3 1.1 Types of isomerism...

More information

Atomic Electron Configurations and Periodicity

Atomic Electron Configurations and Periodicity Atomic Electron Configurations and Periodicity Electron Spin The 4 th quantum number is known as the spin quantum number and is designated by m s. It can have the value of either + ½ or ½ It roughly translates

More information

Q.1 Predict what will happen when SiCl 4 is added to water.

Q.1 Predict what will happen when SiCl 4 is added to water. Transition etals 1 The aqueous chemistry of cations Hydrolysis when salts dissolve in water the ions are stabilised by polar water molecules hydrolysis can occur and the resulting solution can become acidic

More information

Chemical Bond An attraction between the nuclei and valence electrons of different atoms, which binds the atoms together

Chemical Bond An attraction between the nuclei and valence electrons of different atoms, which binds the atoms together Chemical Bond An attraction between the nuclei and valence electrons of different atoms, which binds the atoms together When atoms form chemical bonds their valence electrons move around. This makes atoms

More information

Professor K. Section 8 Electron Configuration Periodic Table

Professor K. Section 8 Electron Configuration Periodic Table Professor K Section 8 Electron Configuration Periodic Table Schrödinger Cannot be solved for multielectron atoms We must assume the orbitals are all hydrogen-like Differences In the H atom, all subshells

More information

Atoms and Periodic Properties

Atoms and Periodic Properties Chemistry, The Central Science, 10th edition Theodore L. Brown; H. Eugene LeMay, Jr.; and Bruce E. Bursten Unit 01 (Chp 6,7): Atoms and Periodic Properties John D. Bookstaver St. Charles Community College

More information

CO-ORDINATION COMPOUNDS AND CHEMICAL BONDING QUESTIONS

CO-ORDINATION COMPOUNDS AND CHEMICAL BONDING QUESTIONS C-RDITI CMPUDS D CEMICL BDIG QUESTIS 1. IUPC name of [Pt ( Br ( CI CI is a. triamine chloro bromo nitro platinum (IV Chloride b. triamine chloro bromo nitro platinum (IV Chloride c. triamine bromo chloro

More information

Lecture 19: Magnetic properties and the Nephelauxetic effect

Lecture 19: Magnetic properties and the Nephelauxetic effect Lecture 19: Magnetic properties and the Nephelauxetic effect sample balance thermometer connection to balance left: the Gouy balance for Gouy Tube determining the magnetic susceptibility of materials north

More information

Chapter 6. Electronic Structure of Atoms. Lecture Presentation. John D. Bookstaver St. Charles Community College Cottleville, MO

Chapter 6. Electronic Structure of Atoms. Lecture Presentation. John D. Bookstaver St. Charles Community College Cottleville, MO Lecture Presentation Chapter 6 John D. Bookstaver St. Charles Community College Cottleville, MO Waves To understand the electronic structure of atoms, one must understand the nature of electromagnetic

More information

ELECTRON CONFIGURATION AND THE PERIODIC TABLE

ELECTRON CONFIGURATION AND THE PERIODIC TABLE ELECTRON CONFIGURATION AND THE PERIODIC TABLE The electrons in an atom fill from the lowest to the highest orbitals. The knowledge of the location of the orbitals on the periodic table can greatly help

More information

Practice Final # Jim and Tim s Excellent Adventure s in Final Exam Preparation. Practice Final

Practice Final # Jim and Tim s Excellent Adventure s in Final Exam Preparation. Practice Final Jim and Tim s Excellent Adventure s in Final Exam Preparation Practice Final 2 2013 1. What element has the electron configuration 1s 2 2s 2 2p 6 3s 2 3p 1? A. Na B. B C. C D. Co E. Al 2. Which of the

More information