Modern Polymer Spect..

5.4 Polypptidt~s 215
Table 5-9. Observed and calculated frequencies !in cin-') of ccr-poly(L-alanine).
Observed" Calculated Potential energy distributionb
Ramaii IR A EI E2
1655s
1658VS 1 1
1543VW 1545VS I
15 16Msh
1458s 1458VS 1 ) 1
1377W
1 3 38Msh
13268 1328sh / /
1308M 1307 /I 1
1278W
1271 W l270M I
1261 W 1265Msh
1167M
1105s
1050W
1017W 1016W 1 1
910W 968M 11
940VW
908VS 909M 1)
8933 I
882W
173VW
156W
1657 CO $32) CN s( 10) CTN d(10)
1655 CO ~(82) CN s( 11) C"CN di 10)
1519
1452
1538
1645 CO s(83) CN s!12) CTN d(10)
1540 NH ib(46) CN s(31) CO ib(12) C"C ~(11)
NH ib(46) CN s(33) CO Ib(l1) C"C silo)
NH ib(45) CN si34) CO ib( 11)
CHI abl(47) CH; ab2(41) CH3 11(10)
1452 CHI ab2(54) CH3 abI(31)
1452 CH3 db2(59) CHI abl(26)
1451 CH3 ab2j45) CH3 abl(41) CH3 r2(10)
1451 CH3 abl(57) CH3 ab2(31)
1451 CH3 abl(62) CHI ab2(26)
1381SA 1379 1379 1379 CH; sb(100)
1349 Ha bl(34) NH ib(17) (2°C s(17) C"Cp s(10)
1345 H" bl(25) H" b2(20) C"C s(17) NH ib(12)
1334 H" b2158) C"C s(16)
1314 H" b2(81)
H" b2(56)H" bl(23)
{ 1301 I3O8 H" bl(62)
1287 NH ib(23) NC" s(18) H" bl(l8)
1278 NH ib(28) H" b2(15) NC' s(14) H" bl(l1)
1262 NH ib(40) Ha b2(28)
NC" ~(32) CH: 11(20) C"C" ~(6)
1170s 11 I
{1178 1167 C"CD s(32) NC" 421) CH3 rl(15) H" bl(10)
1162 C"CD s(41) NC" ~(16) H' bl(12) CH3 rl(12)
1115 CTL' s(64) CH; r2(15)
1108S1
1103 C"Cfl s(39) CH? r2(18)
1094 C'CD s(26) CHI r2(21)
1043 CH3 rl(47) Ha bl(20)
1051VS i 1037 CH3 rl(39) H" bl(22) CH3 i2(15)
1026
CH; r2(28) H" bl(25) CH: rl(24)
982 CHI il(34) NC" ~(29) CH3 12(17) C"C ~(15)
955 CH; r2(32) NC" 420) CH; rl(15)
951 CH; r2(41) NC" s(16)
910
CNs (23) CNC" d( 16) CO 1b( 12) CH3 r2( 1 I ) CO s( 10)
901
CN s(18) C"C s(12) CO ibi12) C'CD $10)
896 C'"'s(l9)C"C a(l4) CN s(14) CO ib(12) NC" s(l1)
714M
780 CO ob(42) Cp bl( 10) CN t( 10)
767 CO ob(57) Cp bl(10)
754 CO obi38) CN t(30)