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Carbon monosulfide
Names
	IUPAC name carbon monosulfide
	Other names carbon(II) sulfide, thiocarbonyl, sulfidocarbon, methanidylidynesulfanium
Identifiers
CAS Number	2944-05-0 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	1697516, 1918616
ChEBI	CHEBI:30253;
ChemSpider	97157 ;
Gmelin Reference	648
PubChem CID	108054;
CompTox Dashboard (EPA)	DTXSID00183645 ;
	InChI InChI=1S/CS/c1-2 Key: DXHPZXWIPWDXHJ-UHFFFAOYSA-N ; InChI=1/CS/c1-2 Key: DXHPZXWIPWDXHJ-UHFFFAOYAW;
	SMILES [S+]#[C-];
Properties
Chemical formula	CS
Molar mass	44.07 g·mol−1
Appearance	reddish crystalline powder
Solubility in water	insoluble
Related compounds
Other anions	Carbon monoxide
Other cations	Silicon monosulfide ; Germanium monosulfide ; Tin(II) sulfide ; Lead(II) sulfide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Carbon monosulfide is a chemical compound with the formula CS. This diatomic molecule is the sulfur analogue of carbon monoxide, and is unstable as a solid or a liquid, but it has been observed as a gas both in the laboratory and in the interstellar medium.^[1] The molecule resembles carbon monoxide with a triple bond between carbon and sulfur. The molecule is not intrinsically unstable, but it tends to polymerize. This tendency reflects the greater stability of C–S single bonds.

Polymers with the formula (CS)_n have been reported,^[2] and the formal dimer is ethenedithione. Also, CS has been observed as a ligand in some transition metal complexes.^{[citation needed]}

References

^ Wilson, R. W.; Penzias, A. A.; Wannier, P. G.; Linke, R. A. (1976). "Isotopic abundances in interstellar carbon monosulfide". Astrophysical Journal. 204 (pt 2): L135 – L137. Bibcode:1976ApJ...204L.135W. doi:10.1086/182072.
^ Chou, J.-H.; Rauchfuss, T. B. (1997). "Solvatothermal Routes to Poly(Carbon Monosulfide)s Using Kinetically Stabilized Precursors" (PDF). Journal of the American Chemical Society. 119 (19): 4537–4538. doi:10.1021/ja970042w.

[1] Wilson, R. W.; Penzias, A. A.; Wannier, P. G.; Linke, R. A. (1976). "Isotopic abundances in interstellar carbon monosulfide". Astrophysical Journal. 204 (pt 2): L135 – L137. Bibcode:1976ApJ...204L.135W. doi:10.1086/182072.

[2] Chou, J.-H.; Rauchfuss, T. B. (1997). "Solvatothermal Routes to Poly(Carbon Monosulfide)s Using Kinetically Stabilized Precursors" (PDF). Journal of the American Chemical Society. 119 (19): 4537–4538. doi:10.1021/ja970042w.

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