Symbol | R | νas(N-H) [cm−1] | νs(N-H) [cm−1] | δ(N-H) [cm−1] | δ(N-H) [cm−1] | ν(C-N) [cm−1] |
E1 | C3H7- | 3362 | 3285 | 1603 | 819 | 1097 |
E2 | C4H9- | 3362 | 3286 | 1598 | 819 | 1092 |
E3 | C8H17- | 3364 | 3288 | 1599 | 818 | 1091 |
E4 | C12H25- | 3363 | 3285 | 1598 | 825 | 1090 |
E5 | C16H33- | 3364 | 3288 | 1597 | 817 | 1091 |
E6 | C18H37- | 3364 | 3289 | 1597 | 818 | 1090 |