N
X
C
Hal
O
N
S
P Si
Natural
Products
Solvents
C
C
C
C C
C
323
7.7 Halogen Compounds
323
7.7.2 Chloro Compounds
Typical Ranges (v ~ in cm -1 )
Assignment
Range
Comments
C–Cl st
830– <600
Strong, often broad (rotational isomers), absent
in chloroaromatics
C–Cl δ
400–280
Of medium strength and width
Other
1100–1020
Strong, narrow or of medium width; chloroaromatics
P–Cl st
<600
Si–Cl st
<625
B–Cl st
1100–650
In disubstituted halobenzenes, characteristic skeletal vibrations:
X
R
X
ortho
meta
para
Cl
1055–1035
1080–1075
1095–1090
Br
1045–1030
1075–1065
1075–1070
I
1060–1055
C–Cl st
%T
400
800
1200
1600
2000
2800
3600
C–Cl δ
X
C
Hal
O
N
S
P Si
Natural
Products
Solvents
C
C
C
C C
C
323
7.7 Halogen Compounds
323
7.7.2 Chloro Compounds
Typical Ranges (v ~ in cm -1 )
Assignment
Range
Comments
C–Cl st
830– <600
Strong, often broad (rotational isomers), absent
in chloroaromatics
C–Cl δ
400–280
Of medium strength and width
Other
1100–1020
Strong, narrow or of medium width; chloroaromatics
P–Cl st
<600
Si–Cl st
<625
B–Cl st
1100–650
In disubstituted halobenzenes, characteristic skeletal vibrations:
X
R
X
ortho
meta
para
Cl
1055–1035
1080–1075
1095–1090
Br
1045–1030
1075–1065
1075–1070
I
1060–1055
C–Cl st
%T
400
800
1200
1600
2000
2800
3600
C–Cl δ