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Copper(II) azide complexes with mono-anionic tridentate Schiff-base ligands: monomer versus dimer

Sarkar, B., Ray, M.S., Drew, M.G.B., Lu, C.Z. and Ghosh, A. (2007) Copper(II) azide complexes with mono-anionic tridentate Schiff-base ligands: monomer versus dimer. Journal of Coordination Chemistry, 60 (20). pp. 2165-2176. ISSN 0095-8972

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To link to this item DOI: 10.1080/00958970701258184

Abstract/Summary

Three new copper(II) complexes [(CuLN3)-N-1](2) (1), [(CuLN3)-N-2] (2) and [(CuLN3)-N-3] (3) with three very similar tridentate Schiff base ligands [HL1=6-diethylamino-3-methyl-1-phenyl-4-azahex-3-en1- one, HL2= 6-amino-3-methyl-1-phenyl-4-azahex-3-en-1-one and HL3= 6-amino-3-methyl1- phenyl-4-azasept-3-en-1-one] have been synthesized and structurally characterized by X-ray crystallography. In complex 1 half of the molecules are basal-apical, end-on azido bridged dimers and the remaining half are square-planar monomers whereas all the molecules in complexes 2 and 3 are monomers with square-planar geometry around Cu(II). A competition between the coordinate bond and H-bond seems to be responsible for the difference in structure of the complexes.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:11601
Uncontrolled Keywords:copper(II), Schiff base, azide, crystal structure, H-bonding, FERROMAGNETIC-ANTIFERROMAGNETIC INTERACTIONS, HYDROGEN-BOND STRUCTURES, RAY CRYSTAL-STRUCTURES, MAGNETIC-PROPERTIES, STRUCTURAL-CHARACTERIZATION, NICKEL(II) COMPLEXES, NI-II, BEHAVIOR, CHAIN, DINUCLEAR

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