Two coordination modes around the Cu(II) cations in complexes with benzo[b]furancarboxylic acids

被引：18

作者：

Drzewiecka, Aleksandra ^{[1
,2
]}

Koziol, Anna E. ^{[1
]}

Klepka, Marcin T. ^{[2
]}

Wolska, Anna ^{[2
]}

Jimenez-Pulido, Sonia B. ^{[3
]}

Lis, Tadeusz ^{[4
]}

Ostrowska, Kinga ^{[5
]}

Struga, Marta ^{[6
]}

机构：

[1] Marie Curie Sklodowska Univ, Fac Chem, PL-23031 Lublin, Poland

[2] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland

[3] Univ Jaen, Dept Inorgan & Organ Chem, Jaen 23071, Spain

[4] Univ Wroclaw, Fac Chem, PL-50353 Wroclaw, Poland

[5] Med Univ Warsaw, Fac Med 1, PL-02097 Warsaw, Poland

[6] Med Univ Warsaw, Fac Pharm, PL-02007 Warsaw, Poland

来源：

CHEMICAL PHYSICS LETTERS | 2013年 / 559卷

关键词：

COPPER-COMPLEXES; DNA-BINDING; DERIVATIVES; OXIDATION;

D O I：

10.1016/j.cplett.2013.01.011

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Three Cu(II) complexes with derivatives of the benzo[b]furancarboxylic acid have been synthesized and characterized by the elemental and thermal analyses, and IR spectroscopy. The geometry of metal-ligand interaction for all compounds has been described using X-ray absorption spectroscopy and for one of them by X-ray crystallography. Two mononuclear Cu(II) complexes, with 7-acetyl-5-bromo-6-hydroxy-3-methylbenzo[b]furan-2-carboxylic and 6-acetyl-5-hydroxy-2-methylbenzo[b]furan-3-carboxylic acids, exhibit a tetra-fold coordination, CuO4. The Cu(II) cation in crystals with 7-acetyl-6-methoxy-3-methyl-benzo[b]furan-2-carboxylic acid is penta-coordinated; the bridging COO groups and ethanol molecule stabilize the dinuclear center Cu2O10. The powdered form of this complex is based on the Cu2O8 units, indicating the absence of the ethanol molecules. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：41 / 45

页数：5

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