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Title: Synthesis, characterization and properties of copper(II) complexes containing N,N-di-(2-pyridylmethyl)-glycine and alanine
Authors: So, K.W.
Yang, C.-T. 
Vittal, J.J. 
Ranford, J.D. 
Keywords: Amino acid complexes
Copper complexes
Crystal structures
Issue Date: 5-Jun-2003
Citation: So, K.W., Yang, C.-T., Vittal, J.J., Ranford, J.D. (2003-06-05). Synthesis, characterization and properties of copper(II) complexes containing N,N-di-(2-pyridylmethyl)-glycine and alanine. Inorganica Chimica Acta 349 : 135-141. ScholarBank@NUS Repository.
Abstract: The multidentate ligands N,N-di-(2-pyridylmethyl)-glycine (bpg) and N,N-di-(2-pyridylmethyl)-alanine (bpa) were synthesized as their lithium salts and X-ray structures of these solved. Copper(II) complexes of these ligands have been prepared and structurally characterized. X-ray structures of compounds [Li(bpg)(H2O)]·H2O (1) and [Li(bpa)(H2O)]·H2O (2) shown the Li(I) ions adopt a distorted trigonal bipyrimidal geometry whereas in the Cu(II) compounds [Cu(bpg)](NO3)·H2O (3) and [Cu(bpa)](SO3CF3)·H2O (6) the Cu(II) ions are in an approximate square pyramidal geometry. The ligand chelates the copper ion in a tetradentate fashion with two pyridine N atoms, one tertiary imine N atom occupying the equatorial positions, and one carboxylato O atom occupying an axial position. The last equatorial position is occupied by the O atom from the carboxylate group of the neighboring molecule and thus forms a covalently bonded zig-zag chain, coordination polymer. © 2003 Elsevier Science B.V. All rights reserved.
Source Title: Inorganica Chimica Acta
ISSN: 00201693
DOI: 10.1016/S0020-1693(03)00083-5
Appears in Collections:Staff Publications

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