Aminoguanidinium(2+) aminoguanidinium(1+) hexachloroantimonate(III) at 295 and 92 K

M Bujak; P Osadczuk; J Zaleski

doi:10.1107/s0108270101000774

Aminoguanidinium(2+) aminoguanidinium(1+) hexachloroantimonate(III) at 295 and 92 K

Acta Crystallogr C. 2001 Apr;57(Pt 4):388-91. doi: 10.1107/s0108270101000774.

Authors

M Bujak¹, P Osadczuk, J Zaleski

Affiliation

¹ Institute of Chemistry, University of Opole, Oleska 48, 45-052 Opole, Poland.

PMID: 11313569
DOI: 10.1107/s0108270101000774

Abstract

The crystal and molecular structure of the title compound, (CH(7)N(4))(CH(8)N(4))[SbCl(6)], has been determined at 295 and 92 K. It is composed of isolated [SbCl(6)](3-) octahedra and aminoguanidinium mono- and dications. One of four of the crystallographically inequivalent aminoguanidinium cations is disordered at both temperatures. Two crystallographically inequivalent [SbCl(6)](3-) octahedra were found to possess three significantly longer Sb-Cl bonds than three other octahedra. The shorter bonds are in the range 2.456 (2)-2.577 (2) A, whereas the longer ones are between 2.705 (2) and 2.931 (2) A. Each short Sb-Cl bond is located trans to a long bond. It is argued that this deformation is caused by N-H.Cl hydrogen bonds.