Absorption Peak Position (cm⁻¹)

Function group/modes of vibration

reference

3430

OH stretching and vibration

[11] [13]

2926.55

the asymmetric and symmetric vibrations of C-H

[25]

2853.9

stretching vibration C-H

[26]

2342

$-\text{C}\equiv \text{N}-$ (Nitrites) and $-\text{C}\equiv \text{C}-$ (Alkynes) compounds

[13] [28]

1631.44

the aromatic stretching

[11] [13]

1380.3

stretching vibration C-N

[26] [28]

1116.2

the Si-O-Si anti-symmetric stretching mode

[3] [13]

668.20 - 420

to siloxane bonds (Si-O-Si) stretching and bending vibrations

[11] [13] [29]