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Hexaamminenickel chloride

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

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

Properties and structure

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

Related compounds

One commercial method for extraction of nickel from its sulfide ores involves the sulfate salt of . In this process, the partially purified ore is treated with air and ammonia as described with this simplified equation:

NiS + 2 O2 + 6 NH3 → [Ni(NH3)6]SO4

References

  1. Eßmann, Ralf; Kreiner, Guido; Niemann, Anke; Rechenbach, Dirk; Schmieding, Axel; Sichla, Thomas; Zachwieja, Uwe; Jacobs, Herbert (1996). "Isotype Strukturen einiger Hexaamminmetall(II)‐halogenide von 3d‐Metallen: I2, I2, Cl2, Cl2, Br2, Br2, und Cl2". Zeitschrift für anorganische und allgemeine Chemie. 622 (7): 1161–1166. doi:10.1002/zaac.19966220709.
  2. G. S. Girolami, T. B. Rauchfuss, and R. J. Angelici (1999) Synthesis and Technique in Inorganic Chemistry, University Science Books: Mill Valley, CA.ISBN 0935702482
  3. Kerfoot, Derek G. E. (2000). "Nickel". Ullmann's Encyclopedia of Industrial Chemistry. doi:10.1002/14356007.a17_157. ISBN 978-3-527-30385-4.
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