Landolsi M, Abid S. Crystal structure and Hirshfeld surface analysis of
trans-2,5-di-methyl-piperazine-1,4-diium tetra-chlorido-cobaltate(II).
Acta Crystallogr E Crystallogr Commun 2021;
77:424-427. [PMID:
33936770 PMCID:
PMC8025852 DOI:
10.1107/s2056989021002954]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 03/19/2021] [Indexed: 01/18/2023]
Abstract
In the title mol-ecular salt, (C6H16N2)[CoCl4], the complete dication is generated by crystallographic inversion symmetry and the piperazine ring adopts a chair conformation with the pendant methyl groups in equatorial orientations. The complete dianion is generated by crystallographic twofold symmetry. In the crystal, the (C6H16N2)2+ and [CoCl4]2- ions are linked by N-H⋯Cl and C-H⋯Cl hydrogen bonds, thereby forming a two-dimensional supra-molecular network. The Hirshfeld surface analysis and fingerprint plots reveal that the largest contributions to the crystal stability come from H⋯Cl/Cl⋯H (68.4%) and H⋯H (27.4%) contacts.
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