|
| Wavenumber (cm−1) | Assignment |
|
| 3070 | Amide B (CNH bend) |
| 2960 | CH3 stretch (antisymmetric) due to methyl terminal of membrane phospholipids |
| 2936 | CH3 stretch |
| 2928 | CH2 antisymmetric stretch of Methylene group of membrane phospholipids |
| 2886 | CH2 stretch (symmetric) due to methylene groups of membrane phospholipids |
| 2854 | CH2 stretch |
| 2739 | CH stretch |
| 1736 | C=O stretch |
| 1667, 1640 | Amide I (protein) C=O stretching of amide coupled to NH2 in-plane bending |
| 1657, 1659 | C=C stretch (lipids), Amide I (α-helix, protein) |
| 1611 | Tyr (aromatics) |
| 1566 | Phe, Trp (phenyl, aromatics) |
| 1550 | Amide II absorption due to N–H bending coupled to a C–N stretch |
| 1509 | C=C stretch (aromatics) |
| 1452 | CH2 stretch deformation of methylene group (lipids) |
| 1439 | CH2 deformation |
| 1420 | CH3 asymmetric stretching (lipids, aromatics) |
| 1397 | CH3 bending due to methyl bond in the membrane |
| 1382 | COO– symmetric stretching |
| 1367 | CH3 symmetric stretching |
| 1336 | Adenine, Phenylalanine, CH deformation |
| 1304 | Lipids CH2 twist, protein amide III band, adenine, cytosine |
| 1267 | Amide III (α-helix, protein) |
| 1250 | Amide III (β-sheet, protein) |
| 1235 | Antisymmetric phosphate stretching |
| 1206 | C–C stretch, C–H bending |
| 1165 | C–O stretch, COH bending |
| 1130 | C–C asymmetric stretching |
| 1100, 1094, 1081 | symmetric stretching (nucleic acids) |
| 1065 | Chain C–C |
| 1056 | RNA ribose C–O vibration |
| 1003 | Phenylalanine (ring-breathing) |
| 967 | C–C and C–N stretch stretching (DNA) |
| 957 | CH3 deformation (lipid, protein) |
| 936 | C–C residue α-helix |
| 921 | C–C stretch proline |
| 898 | C–C stretch residue |
| 870 | C-DNA |
| 853 | Ring breathing Tyr-C–C stretch proline |
| 828, 833 | Out of plane breathing Tyr; asymmetric stretching, DNA (B-form) |
| 807 | A-DNA |
| 786 | DNA-RNA () symmetric stretching |
| 746 | Thymine |
| 727 | Adenine |
|
