Sonochemical synthesis and crystal structure of di-methyl-ammonium bis-[3-carb-oxy-2-(di-methyl-amino)-propano-ato-κ,]chlorido-chromium(II) monohydrate.

Author(s) Saidi, M.; Giorgi, M.; Boukli-Hacene, L.
Journal Acta Crystallogr E Crystallogr Commun
Date Published 2019 May 01

The title complex, [(CH)NH][Cr(CHNO)Cl]·HO, was synthesized sonochemically. The complex anion consists of a chromium(II) ion ligated by two 3-carb-oxy-2-(di-methyl-amino)-propano-ate anions. They coordinate in a bidentate manner, with a carboxyl-ate oxygen atom and the nitro-gen atom to each other in the equatorial plane, while the apical position is occupied by a Cl ion. Hence, the chromium(II) ion is five-coordinate with a quasi-ideal square-pyramidal geometry; τ parameter = 0.01. The complex crystallizes as a monohydrate and in the crystal, the water mol-ecule and the di-methyl-ammonium counter-ion link the complex cations N-H⋯O, N-H⋯Cl, O-H⋯O, O-H⋯O and O-H⋯O hydrogen bonds, forming a supra-molecular framework. There are also a number of C-H⋯O hydrogen bonds present that reinforce the framework structure. The crystal studied was refined as a racemic twin.

DOI 10.1107/S2056989019004717
ISSN 2056-9890
Citation Acta Crystallogr E Crystallogr Commun. 2019;75(Pt 5):604606.

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