vibration

cm−1

Type vibration

3600 - 3400

ν (OH)

(OH)—valence vibration—main layer

ν1, ν3 (H2O)

(H-O-H)—valence vibration—interlayer water

2990

νas (CH3)

asym. (C-H)—valence vibration of CH3-group

2941

νas (CH2)

asym. (C-H)—valence vibration of CH2-group

2885

νs (CH2)

sym. (C-H)—valence vibration of CH2-group

1627

ν2 (H2O)

(H-O-H)—valence vibration—interlayer water

1461

δas (CH3)

asym. (C-H)—deformation vibration of CH3-group

1417

δs (CH2)

sym. (C-H)—deformation vibration of CH2-group

1371

δs (CH3)

sym. (C-H)—deformation vibration of CH3-group

1290

νas ( SO 3 2 )

asym. ( SO 3 2 )—valence vibration

1249

ν3 ( SO 3 2 )

( SO 3 2 )—valence vibration

1186

ν (SO2)

( SO 3 2 )—valence vibration

1051

ν ( SO 3 2 )

( SO 3 2 )—valence vibration

1005

δin-pl. (CH)

(C-H)—deformation vibration within plane

940

δ Al-OH

(Al-OH)—deformation vibration

752

δ Al-OH

(Al-OH)—deformation vibration

532

(AlO6)

(Al-O)—vibration

459

LiO

(Li-O)—vibration