Wave number (cm⁻¹)

Assigned vibrational spectral band

3500 - 3095

O-H stretching

2973 - 2886

C-H stretching

1767 - 1680

(C=O) stretching

1525 - 1478

CH₂bending

1276 - 1258

CH₂wagging

565 - 525

Metal-oxygen stretching