Chem 107: Inorganic Chemistry (40720)

Transcription

1 Chm 107: Inorgni Chmistry (40720) Prossor Mtt Lw -mil: Oi Hours: W 3:00-4:00p n Thurs 11-noon in NS TAs Julit Khosrowi -mil: jkhosrow@ui.u Oi Hours: Tus 2:00-3:00p, 3 r loor tls, Rins Hll Kyl Rosnkottr -mil: krosnko@ui.u Oi Hours: Mony 4:00-5:00p, NS Clss wsit:

2 Txtook Syllus Misslr, G. L.; Fishr, P. J, Trr, D. A. Inorgni Chmistry. 5th Eition; ISBN Ltur Slis Ltur slis r post to th ours wsit s PDF ils or or just tr h ltur. Homwork Spling Lrning onlin homwork (gr), plus suggst prolms rom txtook (ungr) Disussion Stions Will gin mting nxt wk (9/28/15). Disussion sssions r optionl, ut will giv you vlul intrtiv prti with th ours mtril.

3 Syllus Vio Lturs Vios rom lst yr s lturs r vill on lss wsit, ourtsy o UCI Opn Chmistry Inititiv Son hl o th vios tur Pro. Hyuk, so will irnt this yr Bst us s stuy i, not rgulr sustitut or ttning liv lturs

4 Onlin Homwork Syllus Gr onlin homwork ssignmnts or h hptr vi Spling Lrning. Sign up hr: $30 or th qurtr 10% o ours gr Thnology TA: Dr. Kthrin Kon, support@splinglrning.om First ssignmnt vill nxt wk

5 Ltur Shul W will ovr Chptrs 4-11 Mitrm I (Ch. 4,5,7) Mitrm II (Ch. 6,7,8,9) Finl (Ch. 4-11) Syllus You r rsponsil or th kgroun mtril in Chptrs 1-3!

6 Exms Two mitrms n on inl. Exms r umultiv. Syllus Thr r no mk-up xms. I you miss mitrm or n pprov rson, th vlu o th inl will just oringly. S ours syllus or tils. Dt Assignmnt Prntg Friy, Ot 23 r Mitrm Exm I 20 Ws, Nov 18 th Mitrm Exm II 30 W, D 9 th, 8:00 Finl Exm 40 Onlin Homwork 10 Totl 100

7 Chm 107 on th W Th Chm 107 wsit is your sour or up-to-t inormtion rgring this lss. Th lss wsit is ssil through EEE, th UCI Chmistry Dprtmnt wsit, googl, t. Dtil syllus, ltur shul, suggst txtook homwork prolms n nswr kys, ltur slis, links to vio lturs, rings, n nnounmnts r vill hr.

8 Emil Contt E-mils will only pt n nswr or UCI mil rsss Pls ourtous n rsptul whn ontting m or th TAs. Just lik you, w r vry usy n w hv mny ommitmnts outsi o this lss. To mil us pls us th ormt low n w will gt k to you ASAP. Sujt: Chm 107 Dr Prossor Lw, I h qustion rgring somthing in ltur/th txt/on th xm/t. Pls inlu s muh inormtion s possil so tht w n gt n nswr to you ASAP. Thnks or your tim, Ptr/Ptr Anttr UCI ID #

9 Symmtry in Ntur

10 Symmtry rom othr plnts

11 Symmtry Elmnts Symmtry Elmnts n Oprtions An lmnt is gomtri ojt ( pln, lin (xis), or point). Symmtry Oprtions An oprtion is movmnt (rltion, rottion, invrsion) rri out with rspt to symmtry lmnt To possss symmtry oprtion, n ojt must ppr inistinguishl or/tr prorming th symmtry oprtion Elmnt mirror pln propr xis impropr xis Oprtion rltion in th pln rottion out th xis rottion, ollow y rltion in in pln to th xis ntr o invrsion invrsion o ll toms thru ntr Thr r iv oprtions: rltion (σ), propr rottion (C n ), impropr rottion (S n ), invrsion (i), n intity (E)

12 Th Intity Intity Oprtion (E) th o nothing oprtion (th simplst oprtion) mthmtilly quivlnt to multiplying y 1 ll ojts hv E E

13 Propr Rottions Rottion Oprtion (Cn) ountr-lokwis rottion o 2π/n (360 /n) out n xis = 2 = C3

14 Propr Rottions Rottion Oprtion (Cn) ountr-lokwis rottion o 2π/n (360 /n) out n xis = 3 = C2

15 Propr Rottions Rottion Oprtion (Cn) ountr-lokwis rottion o 2π/n (360 /n) out n xis = 4 = C3 2

16 Rottion Oprtion (Cn) Propr Rottions ountr-lokwis rottion o 2π/n (360 /n) out n xis C3 2 = C3 1 C3 1 (invrs C3) is rottion kwrs (lokwis)

17 Propr Rottions Rottion Oprtion (Cn) ountr-lokwis rottion o 2π/n (360 /n) out n xis 1 = 5

18 Propr Rottions Rottion Oprtion (Cn) ountr-lokwis rottion o 2π/n (360 /n) out n xis Now w n lso sy 6 = C1 = E

19 Rottion Oprtion (Cn) Propr Rottions ountr-lokwis rottion o 2π/n (360 /n) out n xis th rottion xis with th lrgst n is ll th highst orr or prinipl xis (th C 6 xis in th s o our snowlk) som ojts hv rottions tht r prpniulr to th prinipl xis 180 C2 ()

20 Rottion Oprtion (Cn) Propr Rottions ountr-lokwis rottion o 2π/n (360 /n) out n xis th rottion xis with th lrgst n is ll th highst orr or prinipl xis (th C 6 xis in th s o our snowlk) som ojts hv rottions tht r prpniulr to th prinipl xis n ojt with Cn xis must hv zro or n prpniulr C2 xs th snowlk hs oinint C 6, C 3, n C 2 xs plus six C 2 xs 180 C2 ( )

21 Rltions Rltion Oprtion (σ) n intrnl rltion thru pln o symmtry within n ojt horizontl mirror pln (σh) is prpniulr to th prinipl xis σ n = E whn n is vn σ n = σ whn n is o

22 Rltion Oprtion (σ) Rltions n intrnl rltion thru pln o symmtry within n ojt horizontl mirror pln (σh) is prpniulr to th prinipl xis vrtil (σv) n ihrl (σ) mirror plns r prlll to th prinipl xis #σv + #σ = 0 or n our snowlk hs on σh, thr σv n thr σ mirror plns σv σ

23 Invrsion Oprtion (i) Invrsion h point is mov long stright lin through th ntr o th ojt (th invrsion ntr) to point n qul istn rom th ntr in othr wors: (x,y,z) (-x,-y,-z) or ll points n ojt n hv zro or on invrsion ntr th snowlk hs n invrsion ntr i i n = E whn n is vn, i n = i whn n is o

24 Invrsion Oprtion (i) Invrsion othr, oxs, squrs, rtngls, n prlllogrms hv invrsion ntrs, ut ttrhr, tringls, n pntgons o not ys invrsion ntrs no invrsion ntrs

25 Impropr Rottions Impropr Rottion Oprtion (Sn) rottion ollow y prpniulr rltion ( roto-rltion) S 4 oprtion in mthn Also: S 2 = i, S 1 = σ Thr r S 3 n S 6 oprtions in th snowlk, ut w ll illustrt th S n oprtion with n tul molul in minut.