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Acta Crystallogr E Crystallogr Commun. 2015 Jan 1;71(Pt 1):45-7. doi: 10.1107/S2056989014026620. eCollection 2015 Jan 1.

Crystal structure of cis-bis-(μ-β-alanine-κ(2) O:O')bis[tri-chlorido-rhenium(III)](Re-Re) sesquihydrate.

Author information

1
Department of Inorganic Chemistry, Ukrainian State University of Chemical Technology, Gagarin Ave. 8, Dnipropetrovsk 49005, Ukraine.
2
Department of Inorganic Chemistry, National Taras Shevchenko University of Kyiv, Volodimirska Str. 64, Kyiv 01033, Ukraine.

Abstract

The structure of the title compound, [Re2Cl6(C3H7NO2)2]·1.5H2O, comprises a dinuclear complex cation [Re-Re = 2.2494 (3) Å] involving cis-oriented double carboxyl-ate bridges, four equatorial chloride ions and two weakly bonded chloride ligands in the axial positions at the two rhenium(III) atoms. In the crystal, two complex mol-ecules and two water mol-ecules constitute hydrogen-bonded dimers, while an extensive hydrogen-bonding network involving the groups of the zwitterionic ligand is important for generation of the framework. An additional partially occupied water molecule is disordered over two sets of sites about a symmetry centre with a site-occupancy ratio of 0.3:0.2.

KEYWORDS:

cluster; crystal structure; quadruple metal–metal bond; rhenium; zwitterionic ammonia­carboxyl­ato complex; β-alanine

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