Thioformaldehyde

Thioformaldehyde
Names
	Other names methanethial
Identifiers
CAS Number	865-36-1;
3D model (JSmol)	Interactive image;
ChemSpider	71446;
EC Number	200-454-1;
PubChem CID	79115;
CompTox Dashboard (EPA)	DTXSID901336564 DTXSID70952941, DTXSID901336564 ;
	InChI InChI=1S/CH2S/c1-2/h1H2 Key: DBTDEFJAFBUGPP-UHFFFAOYSA-N;
	SMILES C=S;
Properties
Chemical formula	CH2S
Molar mass	46.09
Appearance	elusive
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Thioformaldehyde is the organosulfur compound with the formula CH₂S. This compound is very rarely observed because it oligomerizes to 1,3,5-trithiane, which is a stable colorless compound with the same empirical formula. Despite its instability under normal terrestrial conditions, the molecule has been observed in the interstellar medium^[1] and has attracted much attention for its fundamental nature.^[2] The tendency of thioformaldehyde to form chains and rings is a manifestation of the Double bond rule.

References

^ Despois, D., "Radio Line Observations of Molecular and Isotopic Species in Comet C/1995 O1 (Hale-Bopp) Implications on the Interstellar Origin of Cometary Ices", Earth, Moon, Planets 1999, 79, 103-124.
^ Clouthier, D. J.; Ramsay, D. A., "The Spectroscopy of Formaldehyde and Thioformaldehyde", Annual Review of Physical Chemistry 1983, 34, 31-58. doi:10.1146/annurev.pc.34.100183.000335

[1] Despois, D., "Radio Line Observations of Molecular and Isotopic Species in Comet C/1995 O1 (Hale-Bopp) Implications on the Interstellar Origin of Cometary Ices", Earth, Moon, Planets 1999, 79, 103-124.

[2] Clouthier, D. J.; Ramsay, D. A., "The Spectroscopy of Formaldehyde and Thioformaldehyde", Annual Review of Physical Chemistry 1983, 34, 31-58. doi:10.1146/annurev.pc.34.100183.000335

[1]

[2]