Crystal structure of tris-(trans-1,2-di-amino-cyclo-hexane-κ(2) N,N')cobalt(III) trichloride monohydrate

Megan K Gallagher; Allen G Oliver; A Graham Lappin

doi:10.1107/S2056989015023683

Crystal structure of tris-(trans-1,2-di-amino-cyclo-hexane-κ(2) N,N')cobalt(III) trichloride monohydrate

Acta Crystallogr E Crystallogr Commun. 2016 Jan 1;72(Pt 1):49-52. doi: 10.1107/S2056989015023683.

Authors

Megan K Gallagher¹, Allen G Oliver¹, A Graham Lappin¹

Affiliation

¹ Department of Chemistry & Biochemistry, University of Notre Dame, Notre Dame, IN 46556-5670, USA.

Abstract

The synthesis of the title hydrated complex salt, [Co(C6H14N2)3]Cl3·H2O, from racemic trans-1,2-di-amino-cyclo-hexane and [CoCl(NH3)5]Cl2 and its structural characterization are presented in this paper. The product was synthesized in the inter-est of understanding the hydrogen-bonding patterns of coordination complexes. Previous characterizations of the product in the I-42d space group have not yielded coordinates; thus, this paper provides the first coordinates for this complex in this space group. The octahedrally coordinated cation adopts twofold rotation symmetry, with outer-sphere chloride counter-ions and solvent water mol-ecules forming a hydrogen-bonded network with amine H atoms.

Keywords: 1,2-diaminocyclohexane; cobalt(III); coordination complex; crystal structure; hydrogen-bonding patterns.