Abstract

The title complex, [Cu4(C14H15ClN3O4)2(ClO4)2(C6H16N2)2], is a tetra­nuclear copper(II) complex lying about an inversion center wherein a cis-oxamide group is coordinated to both Cu atoms with bite angles of 84.45 (6) and 84.08 (10)°. Both Cu atoms adopt distorted square-pyramidal coordination geometries. The apical position of one Cu atom is occupied by an O atom from a perchlorate group, with a Cu—O bond length of 2.519 (7) Å, while the apical site of the other Cu atom is occupied by a carboxyl­ate O atom with a Cu—O distance of 2.281 (3) Å. The Cu atoms bridged by oxamide and carboxyl­ate-group bridges are separated by 5.204 (6) and 5.603 (2) Å, respectively. The crystal structure is consolidated by weak inter­molecular C—H⋯O inter­actions. Two perchlorate O atoms are disordered with unequal site-occupancy factors.

Highlights

  • The title complex, [Cu4(C14H15ClN3O4)2(ClO4)2(C6H16N2)2], is a tetranuclear copper(II) complex lying about an inversion center wherein a cis-oxamide group is coordinated to both Cu atoms with bite angles of 84.45 (6) and 84.08 (10)

  • 2.519 (7) Å, while the apical site of the other Cu atom is occupied by a carboxylate O atom with a Cu—O distance of

  • The Cu atoms bridged by oxamide and carboxylate-group bridges are separated by 5.204 (6) and 5.603 (2) Å, respectively

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Summary

Yanlong Sun and Xuelian Xu*

Marine Drug and Food Institute, Ocean University of China, Qingdao 266003, People’s Republic of China.

Crystal data
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Yanlong Sun and Xuelian Xu
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