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Concomitant polymorphism of an antiferromagnetically coupled dicopper(II,II) complex with single strand helical assembly: synthesis, structure, DSC, magnetic and heterogeneous catalytic studies

Mijanuddin, M., Jana, A.D., Drew, M.G.B., Hong, C.S., Chattopadhyay, B., Mukherjee, M., Nandi, M., Bhaumik, A., Helliwell, M., Mostafa, G. and Ali, M. (2009) Concomitant polymorphism of an antiferromagnetically coupled dicopper(II,II) complex with single strand helical assembly: synthesis, structure, DSC, magnetic and heterogeneous catalytic studies. Polyhedron, 28 (4). pp. 665-672. ISSN 0277-5387

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To link to this item DOI: 10.1016/j.poly.2008.12.047

Abstract/Summary

Two concomitant polymorphic coordination complexes (dark blue - I and black - II) with the formula (Cu2C44H60N4O4) have been synthesized and characterized crystallographically. Magnetic measurements show the presence of a strong antiferromagnetic interaction and the 2J value corresponds extremely well to the theoretically calculated one, indicating the fact that it follows nicely the magneto-structural relationship. Immobilization of the copper(II) complex I on a 2D-hexagonal mesoporous silica showed good catalytic efficiency in the liquid phase partial oxidation of olefins in the presence of TBHP as an oxidant. (C) 2009 Elsevier Ltd. All rights reserved.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:11478
Uncontrolled Keywords:Cu-II-complexes, Concomitant polymorphism, Antiferromagnetically coupled, Immobilization, Hexagonal mesoporous silica, Heterogeneous catalysis, Epoxidation , DINUCLEAR COPPER(II) COMPLEXES, RAY CRYSTAL-STRUCTURES, GALACTOSE-OXIDASE, AEROBIC OXIDATION, CU-II, THERMODYNAMIC RULES, MOLECULAR-CRYSTALS, MACROCYCLIC LIGAND, MESOPOROUS SILICA, PRIMARY ALCOHOLS

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