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spectro.handouts - Appendix A Typical uv Absorptions for...

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Appendix A. Typical uv Absorptions for Simple Isolated Chromophores -Y-I.-I 5.L. A."i.i.Y-'l. i.-.; .:...Yiri='U- . . R , iY . ,Y& . - - - - nitrile al kyne Chromophore a1 kene alcohol Transition &ax 11 to n ' rr to n* - ether q to K' 290 amine r~ to cr* 190 log (€1 n to I[* q to o* ketone 160 170 11 to 0' arnide <l.O 3.0 175 180 R to n* acid ester thiol 3.0 2.5 180 nitro - 3.5 . . I I 180 q to x* 11 t o n* azo I rl to no 1 340 1 <1.0 3.0 205 205 1.5 1.5
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Appendix B. Typical Infrared Absorptions vibration carbonyl (MI strttcb Alcohds 0-H stretch C-OH rtmtch C-OH in-plane bend GOE wag Alkanes C-H amkh CHZ wag CHt rPck C& wag CH3 twid Alkenes =CHI ~tmtch =CHI wag C=C stretch (cis isomer) C=C stretch (trans hmer) Amin- N-H stretch NH, wag C-N stW& C-N-C xissor mas C-0-C uymmetcical stretch 0-C-0 scissors Nitro compounl NO1 symmetrlcrrl stretch NO1 asy mmehical stretch NO, aciwrs NO2 rock Su~ones SO1 rymmetricnl stretch SO, uymmdricd stretch SOx scisso+s frcquepcy range (cm-') 1870 - 1650
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Table of Characteristic IR Absorptions 3M(b36 10 (s. 4-1) 3500-3200 (s,b) 3MC3250 (m 3309-250 (m) 333Ib3270 (n. s) 3 I (HL?MM) I 1 ?Inlr-?(K)D l1111 31XKL2XSO (~n 2 X3&?hY 5 ( rn I ?26W?210{v) 22h(b? I (Kl ( w I 1760- l M5 (s 1 1761Llh90 (ri 17S(C 1735 ( s ) 174(L1720 ( 5 I 173G1715 1s) 1715 ( \ ) 171(L1665 ( 5 ) 168% I M(l ( ~ n ) 16561580 im, 164HI-1585 (m) 155%1475 i s 3 1 5 0 & 1 ~ (1111 1470-1450 (m) I 37Ib 1350 (m 1 13Mb1290 (m) 1 335-1 250 (S ) 1320-1000 (s) 1 3 0 ~ 1 1 5 0 ~ m ) 12561020 (in) 1000-650 (51 950-910 (m) 91(Mh5 (c. b, 9 m 7 5 851)-550 ( rn, 725-720 ( t11 I 70(M10(b. s ) . 690-515 (rn) 0-H stretch. frre hydrnxyl 0-H sirerch. H-brtndrd N-H stretch &H strelch C C - H : C-H siretch C-H stretch =C-H stretch C-H stretch H X = 0 : C-H stretch C=N stretch -Car- s~retch C=O nre~ch C=O stre~ch C=O stretch C=O vretch C=O stretch C=O
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