Hexaamminecobalt(III) chloride

Hexaamminecobalt(III) chloride is the chemical compound with the formula [Co(NH3)6]Cl3. It is the chloride salt of the coordination complex [Co(NH3)6]3+, which is considered an archetypal "Werner complex", named after the pioneer of coordination chemistry, Alfred Werner. The cation itself is a metal ammine complex with six ammonia ligands attached to the cobalt(III) ion.

Hexaamminecobalt(III) chloride
Names
IUPAC name
Hexaamminecobalt(III) chloride
Other names
Cobalt hexammine chloride, hexaamminecobalt(III) chloride
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.030.991
EC Number
  • 234-103-9
UNII
  • InChI=1S/3ClH.Co.6H3N/h3*1H;;6*1H3/q;;;+3;;;;;;/p-3
    Key: JXBGZYGSWFSYFI-UHFFFAOYSA-K
  • [Cl-].[NH3+] [Co-3]([NH3+])([NH3+])([NH3+])([NH3+])[NH3+].[Cl-].[Cl-]
Properties
H18N6Cl3Co
Molar mass 267.48 g/mol
Appearance yellow or orange crystals
Density 1.71 g/cm3,
Melting point decomposes
0.26 M (20 °C)
tribromide: 0.04 M (18 °C)
Solubility soluble in NH3
Structure
octahedral
0 D
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
poison
GHS labelling:
Warning
H315, H319, H335
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
Related compounds
Other anions
[Co(NH3)6]Br3
[Co(NH3)6](OAc)3
Other cations
[Cr(NH3)6]Cl3
[Ni(NH3)6]Cl2
Related compounds
[Co(H2NCH2CH2NH2)3]Cl3

[Co(NH3)5(H2O)]Cl3
[Co(NH3)5Cl]Cl2

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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