Selenocyanate

Selenocyanate
Identifiers
CAS Number	5749-48-4;
3D model (JSmol)	Interactive image;
Beilstein Reference	1848016
ChEBI	CHEBI:29445;
ChEMBL	ChEMBL448089;
ChemSpider	69410;
Gmelin Reference	81789
PubChem CID	76961;
CompTox Dashboard (EPA)	DTXSID90973017 ;
	InChI InChI=1S/CHNSe/c2-1-3/h3H/p-1 Key: CRDYSYOERSZTHZ-UHFFFAOYSA-M;
	SMILES C(#N)[Se-];
Properties
Chemical formula	CNSe−
Molar mass	104.990 g·mol−1
Related compounds
Related compounds	thiocyanate; cyanate
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

A selenocyanate is an ion or chemical compound that contains the -SeCN group, which could be in the form of an anion, SeCN⁻. Organic selenocyanates also exist.

Some complex ions with transition metals such as silver and mercury (mercuriselenocyanates) are known. Mercuriselenocyanate salts also include K, Fe, Co, Ni, Cu, Zn, and Cd. Complex ions include Fe(NCSe)₆³⁻, Fe(NCSe)₆⁴⁻, Fe(NCSe)₄²⁻, Co(NCSe)₆⁴⁻, Co(NCSe)₄²⁻, Ni(NCSe)₆⁴⁻, Zn(NCSe)₆⁴⁻, Rh(NCSe)₆⁴⁻, Pd(NCSe)₄²⁻, Ag(SeCN)₂⁻, Cd(NCSe)₄²⁻, Cd(NCSe)₆⁴⁻, Dy(NCSe)₆³⁻, Ho(NCSe)₆³⁻, Er(NCSe)₆³⁻, Pt(NCSe)₆²⁻, Au(NCSe)₄⁻, and Hg(NCSe)₄²⁻.

For hard metals, the negative charge is on the nitrogen atom which coordinates with the metal atom. Examples include Ti(NCSe)₆²⁻, V(NCSe)₆³⁻, VO(NCSe)₄²⁻, Cr(NCSe)₆³⁻, Mn(NCSe)₄²⁻, Mn(NCSe)₄²⁻, Y(NCSe)₆³⁻, Zr(NCSe)₆²⁻, Mo(NCSe)₆³⁻, Pr(NCSe)₆³⁻, Nd(NCSe)₆³⁻, Sm(NCSe)₆³⁻, Hf(NCSe)₆²⁻, Re₂(NCSe)₈²⁻, Pa(NCSe)₈⁴⁻ and U(NCSe)₈⁴⁻.

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