Publication Type Journal Article
Title A cyclic tetranuclear cuboid type copper(II) complex doubly supported by cyclohexane-1,4-dicarboxylate: molecular and supramolecular structure and cyclohexane oxidation activity
Authors Susanta Hazra Sanghamitra Mukherjee M. Fátima C. Guedes da Silva Armando J.L. Pombeiro
Groups CCC
Journal RSC ADVANCES
Year 2014
Month
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Volume 4
Number 89
Pages 48449-48457
Abstract Synthesis, characterization and catalytic study of the new bis(mu(4)-(ae)-cyclohexane-1,4-dicarboxylato-O,O ,O ,O )-tetracopper(II) complex [(CuL)(2)(mu(4)-O,O ,O ,O -CDC)](2)center dot 2H(2)O (1) (HL = 2-(2-pyridylmethyleneamino)benzenesulfonic acid and CDC = cyclohexane-1,4-dicarboxylate) are described. Complex 1 contains four copper(II) centres connected by four Schiff base ligands (L-) and doubly bridged by two cyclohexane-1,4-dicarboxylate moieties. The axial-equatorial conformation of the carboxylate groups of CDC stabilizes a tetracopper di-CDC ring in a cuboid type fashion. Compound 1 is applied as an efficient pre-catalyst for the oxidation of cyclohexane by aqueous H2O2 under mild conditions (50 degrees C) in CH3CN/H2O medium. Without any promoter, a total yield (based on substrate) of cyclohexanol and cyclohexanone up to 35\% was achieved.
DOI http://dx.doi.org/10.1039/c4ra06986b
ISBN
Publisher ROYAL SOC CHEMISTRY
Book Title
ISSN 2046-2069
EISSN
Conference Name
Bibtex ID ISI:000343709600061
Observations
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