N
X
C
O
N
S
Hal
Solvents
Natural
Products
P Si
C
C
C C
C
C
330
7 IR
7.9 Nitrogen Compounds
7.9.1 Amines and Related Compounds
Primary Amines
Secondary Amines
Ammonium
%T
400
800
1200
1600
2000
2800
3600
N–H δ
C–N st
N–H δ
N–H st
C–H st
%T
400
800
1200
1600
2000
2800
3600
N
+
–H
st and comb
N
+
–H δ
%T
400
800
1200
1600
2000
2800
3600
NH 2 δ
C–N st
NH 2 δ
NH 2 st
Fermi
resonance (Ar-NH )
C–H st
2
X
C
O
N
S
Hal
Solvents
Natural
Products
P Si
C
C
C C
C
C
330
7 IR
7.9 Nitrogen Compounds
7.9.1 Amines and Related Compounds
Primary Amines
Secondary Amines
Ammonium
%T
400
800
1200
1600
2000
2800
3600
N–H δ
C–N st
N–H δ
N–H st
C–H st
%T
400
800
1200
1600
2000
2800
3600
N
+
–H
st and comb
N
+
–H δ
%T
400
800
1200
1600
2000
2800
3600
NH 2 δ
C–N st
NH 2 δ
NH 2 st
Fermi
resonance (Ar-NH )
C–H st
2