Abstract
The tetranuclear title complex, [Cu4(C7H4O3)2(OH)2(C10H8N2)4](NO3)2·4H2O, has a crystallographically imposed centre of symmetry. The CuII atoms display a distorted square-pyramidal coordination geometry and are linked by two μ2-phenolate O atoms from the salicylate ligands and two μ3-hydroxo groups, forming a Cu4O4 core that adopts a ‘stepped-cubane’ geometry. In the crystal, the cations are linked by O—H⋯O hydrogen bonds to the nitrate anions, which are in turn connected via O—H⋯O interactions to centrosymmentric water tetramers.
Highlights
Hub a Biochemical Section of Key Laboratory of Functional Polymer Materials, Ministry of Education of China, Chemical School of Nankai University, 300071 Tianjin, People’s
H O hydrogen bonds to the nitrate anions, which are in turn connected via O—H O interactions to centrosymmentric water tetramers
The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry
Summary
Hub a Biochemical Section of Key Laboratory of Functional Polymer Materials, Ministry of Education of China, Chemical School of Nankai University, 300071 Tianjin, People’s. H O hydrogen bonds to the nitrate anions, which are in turn connected via O—H O interactions to centrosymmentric water tetramers
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