Carbon monophosphide

Carbon monophosphide
Names
	Preferred IUPAC name Phosphanylidynemethyl
	Other names Carbon phosphide; Carbon monophosphide; Phosphidocarbonate(II); Cyaphogenyl radical
Identifiers
3D model (JSmol)	Interactive image;
PubChem CID	102183332;
	InChI InChI=1S/CP/c1-2 Key: GDPLAAHPHNAIGW-UHFFFAOYSA-N;
	SMILES [C]#P;
Properties
Chemical formula	CP
Molar mass	42.985 g·mol−1
Related compounds
Related compounds	CN SiP CCP radical, HCP
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Carbon monophosphide is a diatomic chemical with formula CP. It is a heavier analog of the cyanide radical (CN). CP and CN are both open-shell species with doublet Π ground electronic states while the ground states of CS and CO are closed-shell. The related anion, CP⁻, is called cyaphide and isoelectronic with CS.

Detection in interstellar medium

Carbon monophosphide was detected in the circumstellar envelope of the star IRC +10216 in 1990,^[1] observed with the IRAM 30m radiotelescope.^[1]

References

^ ^a ^b Guelin, M.; Cernicharo, J.; Paubert, G.; Turner, B. E. (1990). "Free CP in IRC +10216". Astronomy and Astrophysics. 230: L9. Bibcode:1990A&A...230L...9G.

[Guelin1990-1] Guelin, M.; Cernicharo, J.; Paubert, G.; Turner, B. E. (1990). "Free CP in IRC +10216". Astronomy and Astrophysics. 230: L9. Bibcode:1990A&A...230L...9G.

[1]