Research Article: Bis[hexa­amminecobalt(III)] penta­chloride nitrate

Date Published: June 01, 2012

Publisher: International Union of Crystallography

Author(s): Qihui Wu, Chunyu Du, Yang Lv, Guoliang Chen, Qinhe Pan.


The title compound, [Co(NH3)6]2Cl5(NO3), was obtained under hydro­thermal conditions. The asymmetric unit contains three Co3+ ions, one lying on an inversion center and the other two located at 2/m positions. All Co3+ ions are six-coordinated by NH3 mol­ecules, forming [Co(NH3)6]3+ octahedra, with Co—N distances in the range 1.945 (4)–1.967 (3) Å. The nitrate N atom and one of the O atoms lie at a mirror plane. Among the Cl− anions, one lies in a general position, one on a twofold axis and two on a mirror plane. N—H⋯O and N—H⋯Cl hydrogen bonds link the cations and anions into a three-dimensional network.

Partial Text

For metal phosphates and germanates prepared using metal complexes as templates, see: Wang et al. (2003a ▶,b ▶); Pan et al. (2005 ▶, 2008 ▶). For our continued research inter­est focused on the synthesis of microporous open-framework metal-organic hybride materials by introducing transition metal complexes as templates, see: Pan et al. (2010a ▶,b ▶, 2011 ▶); Tong & Pan (2011 ▶); Liang et al. (2011 ▶). For a structure containing a [Co(NH3)6]3+ cation, see: Han et al. (2012 ▶).