Pentacyanocobaltate

Pentacyanocobaltate
Identifiers
CAS Number	14971-18-7;
3D model (JSmol)	Interactive image;
PubChem CID	22141881;
	InChI InChI=1S/5CN.Co/c51-2;/q5-1;+2 Key: YOZCCRZCYZQCAC-UHFFFAOYSA-N;
	SMILES [N-]#C[Co+2](C#[N-])(C#[N-])(C#[N-])C#[N-];
Properties
Chemical formula	C5CoN53−
Molar mass	189.025 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

In chemistry, pentacyanocobaltate is the coordination complex with the formula [Co(CN)₅]³⁻. When crystallized with a quaternary ammonium cation, it can be obtained as a yellow solid. Pentacyanocobaltate attracted attention as an early example of a metal complex that reacts with hydrogen. It contains low-spin cobalt(II), with a doublet ground state.

Identifiers

CAS Number	14971-18-7
3D model (JSmol)	Interactive image
PubChem CID	22141881
InChI InChI=1S/5CN.Co/c51-2;/q5-1;+2 Key: YOZCCRZCYZQCAC-UHFFFAOYSA-N
SMILES [N-]#C[Co+2](C#[N-])(C#[N-])(C#[N-])C#[N-]
Properties
Chemical formula	C₅CoN₅³⁻
Molar mass	189.025 g·mol⁻¹
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references