Table 6 Vibrational properties of each amide mode
From: Recent development of surface-enhanced Raman scattering for biosensing
Amide mode | Potential energy distribution (PED) | Raman shift (cm−1) |
|---|---|---|
Amide I | CO s(83), CN s(15), CCN d(11) | 1618–1741 |
Amide II | NH ib(49), CN s(33), CO ib(12), CCs(10), NC s(9) | 1509–1592 |
Amide III | NH ib(52), CCs(18), CN s(14), CO ib(11) | 1226–1391 |
Amide IV | CO ib(44), CCs(34), CNC d(11) | 627–800 |
Amide V | CN t(75), NH ob(38) | 493–756 |
Amide VI | CO ob(85), CN t(13) | 600–655 |
Amide VII | NH ob(64), CN t(15), CO ob(12) | 202–226 |