Hexaamminenickel Chloride - Wikipedia

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• 1 Properties and structure
• 2 Related compounds
• 3 References

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Appearance move to sidebar hide From Wikipedia, the free encyclopedia 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-2Key: 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

Chemical compound

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.[1]

Properties and structure

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[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).[2]

Related compounds

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One commercial method for extraction of nickel from its sulfide ores involves the sulfate salt of [Ni(NH3)6]2+. In this process, the partially purified ore is treated with air and ammonia as described with this simplified equation:[3]

NiS + 2 O2 + 6 NH3 → [Ni(NH3)6]SO4

References

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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: [V(NH3)6]I2, [Cr(NH3)6]I2, [Mn(NH3)6]Cl2, [Fe(NH3)6]Cl2, [Fe(NH3)6]Br2, [Co(NH3)6]Br2, und [Ni(NH3)6]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.

Retrieved from "https://en.wikipedia.org/w/index.php?title=Hexaamminenickel_chloride&oldid=1239000551" Categories:

• Nickel complexes
• Inorganic compounds
• Chlorides
• Octahedral compounds
• Ammine complexes

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