N
X
C
Hal
O
N
S
P Si
Natural
Products
Solvents
C
C
C
C C
C
345
7.10 Sulfur Compounds
345
7.10.3 Thiocarbonyl Derivatives
Typical Ranges (v ~ in cm -1 )
Assignment
Range
Comments
C=S st
1275–1030
Strong, narrow. In Raman, strong
Subranges:
1075–1030
Thioketones
1210–1080
Thioesters
≈1215
Dithiocarboxylic acids SH st: ≈2550
SH δ: ≈860
1125–1075
Thiocarboxylic acid
fluoride
perfluorinated:
1130–1105
1100–1065
Thiocarboxylic acid
chloride
perchlorinated:
1100–1075
1140–1090
Thioamides and
thiolactams
C–N st: 1535–1520
NH δ: 1380–1300
Also:
750–580
P=S st
7.10.4 Thiocarbonic Acid Derivatives
Trithiocarbonates
S–H st
%T
400
800
1200
1600
2000
2800
3600
C=S st
%T
400
800
1200
1600
2000
2800
3600
C=S st
S–H s t
X
C
Hal
O
N
S
P Si
Natural
Products
Solvents
C
C
C
C C
C
345
7.10 Sulfur Compounds
345
7.10.3 Thiocarbonyl Derivatives
Typical Ranges (v ~ in cm -1 )
Assignment
Range
Comments
C=S st
1275–1030
Strong, narrow. In Raman, strong
Subranges:
1075–1030
Thioketones
1210–1080
Thioesters
≈1215
Dithiocarboxylic acids SH st: ≈2550
SH δ: ≈860
1125–1075
Thiocarboxylic acid
fluoride
perfluorinated:
1130–1105
1100–1065
Thiocarboxylic acid
chloride
perchlorinated:
1100–1075
1140–1090
Thioamides and
thiolactams
C–N st: 1535–1520
NH δ: 1380–1300
Also:
750–580
P=S st
7.10.4 Thiocarbonic Acid Derivatives
Trithiocarbonates
S–H st
%T
400
800
1200
1600
2000
2800
3600
C=S st
%T
400
800
1200
1600
2000
2800
3600
C=S st
S–H s t