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thiobenzophenone

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thiobenzophenone

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Thiobenzophenone is an organosulfur compound with the formula (C6H5)2CS. It is the prototypical thioketone. Unlike other thioketones that tend to dimerize to form rings and polymers, thiobenzophenone is quite stable, although it photoxidizes in air back to benzophenone and sulfur. Thiobenzophenone is deep blue and dissolves readily in many organic solvents.

Chemical data

Formula
C13H10S
Molecular weight
198.29 g/mol
IUPAC name
diphenylmethanethione
SMILES
C1=CC=C(C=C1)C(=S)C2=CC=CC=C2
InChIKey
XDDVRYDDMGRFAZ-UHFFFAOYSA-N
XLogP
3.5
Polar surface area
32.1 Ų
H-bond donors
0
H-bond acceptors
1
Formal charge
0

via PubChem

Wikidata facts

Has part
sulfur
Mass
198.050321
Show 3 more facts
Commons category
Thiobenzophenone
chemical formula
C₁₃H₁₀S
canonical SMILES
C1=CC=C(C=C1)C(=S)C2=CC=CC=C2
Sources (2)

via Wikidata · CC0

~2 min read

Encyclopedic overview

4 sections
Contents
  • Structure
  • Synthesis
  • Reactivity
  • References

Thiobenzophenone is an organosulfur compound with the formula (C6H5)2CS. It is the prototypical thioketone. Unlike other thioketones that tend to dimerize to form rings and polymers, thiobenzophenone is quite stable, although it photoxidizes in air back to benzophenone and sulfur. Thiobenzophenone is deep blue and dissolves readily in many organic solvents.

==Structure== The C=S bond length of thiobenzophenone is 1.63 Å, which is comparable to 1.64 Å, the C=S bond length of thioformaldehyde, measured in the gas phase. Due to steric interactions, the phenyl groups are not coplanar and the dihedral angle SC-CC is 36°. A variety of thiones with structures and stability related to thiobenzophenone have also been prepared.

Excerpted from Wikipedia’s “thiobenzophenone” article, available under the CC BY-SA 4.0 licence.