FTIR and Raman Characteristic Peak Frequencies in Biological Studies - Vibrational Spectroscopy for Tissue Analysis - page 244

Table 8.1 ( Continued )
Major Characteristic Peak Frequencies Reported in the Literature

Reference
Number Peak Assignment FT-IR Raman

1172/3 cm −1 CO stretching of the C-OH

groups of serine, threosine, and
tyrosine in the cell proteins as
well as carbohydrates

* 64

1173 cm −1 C-O stretching (in malignant

tissues)

* 79

1173 cm −1 Nonhydrogen-bonded stretching

mode of C-OH groups

* 51

Cytosine, guanine * 21

CH' 9 , CH 7 , CH' 7 deformations * 6

Tyrosine (collagen type I) * 3

1174 cm −1 Tyrosine, phenylalanine, C-H

bend (protein)

* 12

Protein peak * 17

Haemoglobin * 60

δ(C-H), tyrosine in tumours * 17

1175/6/7 cm −1 Cytosine, guanine * 21

1180 cm −1 Cytosine, guanine * 21

(C-O) ester vibration * 1

O-CH 3 stretching vibration * 1

Cytosine, guanine, adenine * 16

1180-84 cm −1 Cytosine, guanine, adenine * 9

1180-300 cm −1 Amide III band region * 83

1185/1/2 cm −1 CH 2 * 48

1185-300 cm −1 Antisymmetric phosphate

vibrations

* 69

1187/8 cm −1 CH α,2',8 in-plane bend * 6

1188 cm −1 Deoxyribose * 48

1194 cm −1 Ring stretch, in-plane CH bend,

CH 2 twist

* 14

1200 cm −1 Collagen * 66

Nucleic acids and phosphates * 69

Phosphate (P= O) band * 56

Aromatic C-O and C-N * 84

1200-350 cm −1 Amide III; due to C-N stretching

and N-H bending

* 12, 54

1200-360 cm −1 Electronic structure of

nucleotides

* 12

1200-400 cm −1 C-N bends of the peptide

linkages

* 85

1200-500 cm −1 Amide III of proteins * 35

1201 cm −1 PO 2 − asymmetric (phosphate I) * 48