FTIR and Raman Characteristic Peak Frequencies in Biological Studies - Vibrational Spectroscopy for Tissue Analysis - page 228

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

Reference
Number Peak Assignment FT-IR Raman

Aromatic stretch of a substituted
benzene ring

* 14

Ring stretch * 14

1006 cm −1 Symmetric ring breathing mode

of phenylalanine

* 16

1000-50 cm −1 Ring stretching vibrations mixed

strongly with CH in-plane
bending

* 13

1000-140 cm −1 Protein amide I absorption * 55

1000-150 cm −1 A reasonably specific area for

nucleic acids in the absence of
glycogen

* 50

1000-200 cm −1 C-OH bonds in oligosaccharides

such as mannose and galactose

* 56

Mainly from phosphate or
oligosaccharide groups

* 56

1000-300 cm −1 CH in-plane bending vibrations * 13

The aromatic CH bending and
rocking vibrations

* 6

1000-350 cm −1 Region of the phosphate

vibration

* 48

1000-650 cm −1 Porphyrin ring of heme proteins * 57

1001 cm −1 Symmetric ring breathing mode

of phenylalanine

* 9, 10

1002 cm −1 C-C aromatic ring stretching * 15

Phenylalanine 54

Phenylalanine and tryptophan
(ring breathing modes of DNA/
RNA bases)

* 4

1002 cm −1 Phenylalanine * 3

ν s Symmetric ring breathing
mode, phenylalanine

* 17

Phenylalanine (collagen
assignment)

* 19

1003 cm −1 Phenylalanine, C-C skeletal * 12

Phenylalanine residues * 58, 59

1004 cm −1 Phenylalanine (of collagen) * 3

ν s (C-C), Symmetric ring
breathing, phenylalanine
(protein assignment)

* 20, 33

Phenylalanine (collagen
assignment)

19

Phenyl breathing mode * 33