Hexaamminenickel chloride

Hexaamminenickel chloride is the chemical compound with the formula [Ni(NH₃)₆]Cl₂. It is the chloride salt of the metal ammine complex [Ni(NH₃)₆]²⁺. The cation features six ammonia (called ammines in coordination chemistry) ligands attached to the nickel(II) ion.

Hexaamminenickel chloride

Names
IUPAC name Hexaamminenickel(II) chloride
Other names Nickel hexammine chloride, hexamminenickel chloride
Identifiers
CAS Number	10534-88-0 Y
3D model (JSmol)	Interactive image
ChemSpider	11230400
ECHA InfoCard	100.149.740
PubChem CID	22221640
CompTox Dashboard (EPA)	DTXSID20328152
InChI InChI=1S/2ClH.6H3N.Ni/h2*1H;6*1H3;/q;;;;;;;;+2/p-2 Key: ZXZMQWZQMZHFOR-UHFFFAOYSA-L
SMILES N.N.N.N.N.N.[Cl-].[Cl-].[Ni+2]
Properties
Chemical formula	Cl2H18N6Ni
Molar mass	231.78 g·mol−1
Appearance	violet solid
Density	1.51 g/cm3
Melting point	decomposes
Solubility	soluble in NH3
Structure
Coordination geometry	octahedral
Dipole moment	0 D
Related compounds
Other cations	[Cr(NH3)6]Cl3 [Co(NH3)6]Cl3
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Properties and structure

[Ni(NH₃)₆]²⁺, like all octahedral nickel(II) complexes, is paramagnetic with two unpaired electrons localized on each Ni center. [Ni(NH₃)₆]Cl₂ is prepared by treating aqueous nickel(II) chloride with ammonia. It is useful as a molecular source of anhydrous nickel(II).