Copper(II) complexes of Schiff-base and reduced Schiff-base ligands:   Influence of weakly coordinating sulfonate groups on the structure and   oxidation of 3,5-DTBC

doi:10.1002/ejic.200500638

CORC > 北京大学 > 化学与分子工程学院

	Copper(II) complexes of Schiff-base and reduced Schiff-base ligands: Influence of weakly coordinating sulfonate groups on the structure and oxidation of 3,5-DTBC
	Sreenivasulu, B ; Vetrichelvan, M ; Zhao, F ; Gao, S ; Vittal, JJ
刊名	欧洲无机化学杂志
	2005
关键词	biomimetic studies copper Schiff-base complexes organosulfonate ligands catecholase activity magnetic properties CATECHOL OXIDASE ACTIVITY CRYSTAL-STRUCTURES ACTIVE-SITE SPECTROSCOPIC CHARACTERIZATION MULTICOPPER OXIDASES DICOPPER(II) COMPLEX FUNCTIONAL MODELS BETA-ELIMINATION HYDROGEN-BOND AMINO-ACIDS
DOI	10.1002/ejic.200500638
英文摘要	The copper(II) complexes of the Schiff-base ligands H(2)Sams and H(2)Saes and the reduced Schiff-base ligands H(2)Sam and H(2)Sae formed between salicylaldehyde and aminomethanesulfonic acid or 2-aminoethanesulfonic acid (taurine) have been synthesized in moderate yields. The solid-state structures of the five dinuclear complexes, [Cu-2(Sams)(2)(H2O)(2)] (1), [Cu-2(Sam)(2)(H2O)(2)](H2O)-H-. (2), [Cu-2(SaeS)(2)(H2O)(2)](.)2H(2)O(3), [Cu-2(Sae)(2)](.)2H(2)O (4), and [Cu-2(Sae)(2)(DMF)(2)](.)2DMF (5), have been determined by X-ray crystallography, showing that the Cu-II centers have distorted square-pyramidal geometry. The Schiff-base copper complexes 1 and 3 have hydrogen-bonded 2D sheet structures while the reduced Schiff-base complexes 4 and 5 display a 2D coordination network and a hydrogen-bonded 2D structure respectively. All these complexes have been investigated for their catecholase activity and activity measurements have been compared with those of dinuclear copper(II) complexes of similar ligands obtained with carboxylate analogues of the corresponding sulfonic acids; these studies show that 4 has significantly higher activity. Further, a strong antiferromagnetic interaction between Cull ions in dimeric complexes 1 [J = -9.04(2) cm(-1)], 3 [J = -272(4) cm(-1)), and 4 [J = -237(4) cm(-1)] has been observed. (c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005.; Chemistry, Inorganic & Nuclear; SCI(E); 0; REVIEW; 22; 4635-4645
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/253690]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Sreenivasulu, B,Vetrichelvan, M,Zhao, F,et al. Copper(II) complexes of Schiff-base and reduced Schiff-base ligands: Influence of weakly coordinating sulfonate groups on the structure and oxidation of 3,5-DTBC[J]. 欧洲无机化学杂志,2005.
APA	Sreenivasulu, B,Vetrichelvan, M,Zhao, F,Gao, S,&Vittal, JJ.(2005).Copper(II) complexes of Schiff-base and reduced Schiff-base ligands: Influence of weakly coordinating sulfonate groups on the structure and oxidation of 3,5-DTBC.欧洲无机化学杂志.
MLA	Sreenivasulu, B,et al."Copper(II) complexes of Schiff-base and reduced Schiff-base ligands: Influence of weakly coordinating sulfonate groups on the structure and oxidation of 3,5-DTBC".欧洲无机化学杂志 (2005).