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Title: Synthesis and aqueous solution properties of multinuclear oxo-bridged vanadium(IV/V) complexes
Authors: Keramidas, Anastasios D. 
Drouza, Chryssoula 
Keywords: Chemical analysis
Chemical reactions
Electrochemical analysis
Hydrogen-ion concentration
Vanadium compounds
Issue Date: 2000
Publisher: Elsevier
Source: Journal of inorganic biochemistry, 2000, volume 80, issue 1-2, pages 75-80
Abstract: Reaction of the multifunctional phenolic ligands 2,5-bis[N,N-bis(carboxymethyl)aminomethyl]hydroquinone (H6cahq), 2,2'-bis[N,N-bis(carboxymethyl)aminomethyl]-4,4'-isopropylidenedi phenol (H6capd), 2,2',2''-tris[N,N-bis(carboxymethyl)aminomethyl]-1,1,1-tris(4-hyd roxyphenyl)ethane (H9catp) and the monofunctional 2-[N,N-bis(carboxymethyl)aminomethyl]-4-carboxyphenol (H3cacp), with VOSO4 and NaVO3 affords the oxo-bridged mixed-valence vanadium(IV/V) Na6[(VO)4(μ-O)2(μ-cahq)2] · Na2SO4 · 20H2O (1), H(n)Na3-(n)[(VO)2(μ-O)(μ-cacp)2] (2), H(n)Na(3-n)[(VO)4(μ-O)2(μ-capd)2] (3), H(n)Na(9-n)[(VO)6(μ-O)3(μ3-catp)2] (4). In addition to the synthesis, we report the infrared, magnetic, optical and electrochemical properties of these complexes. The hydrolytic stability at different pH values was also investigated using visible spectroscopy. (C) 2000 Elsevier Science Inc
ISSN: 01620134
DOI: 10.1016/S0162-0134(00)00042-8
Rights: © 2000 Elsevier Science Inc. All rights reserved
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