A NEW HYDROGEN-BONDED DINUCLEAR COMPLEX INVOLVING COPPER(II) IONS IN A PSEUDOTETRAHEDRAL N3O ENVIRONMENT - MOLECULAR AND CRYSTAL-STRUCTURE AND MAGNETIC AND SPECTROSCOPIC PROPERTIES

被引：51

作者：

COLACIO, E

COSTES, JP

KIVEKAS, R

LAURENT, JP

RUIZ, J

SUNDBERG, M

机构：

[1] UNIV HELSINKI,DEPT CHEM,DIV INORGAN CHEM,SF-00100 HELSINKI 10,FINLAND

[2] INST NATL POLYTECH TOULOUSE,F-31077 TOULOUSE,FRANCE

[3] UNIV PAUL SABATIER,CNRS,UP 8241,CHIM COORDINAT LAB,F-31077 TOULOUSE,FRANCE

来源：

INORGANIC CHEMISTRY | 1991年 / 30卷 / 07期

关键词：

D O I：

10.1021/ic00007a010

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The preparation, spectroscopic and magnetic properties, and crystal structure of [CuLpy]2.0.5H2O are described (L stands for the dideprotonated form of 6-amino-1,3-dimethyl-5-((2-carboxyphenyl)azo)uracil and py stands for pyridine). Crystals are monoclinic, of space group P2(1)/c, with cell constants a = 9.740 (3) angstrom, b = 19.258 (7) angstrom, c = 10.361 (3) angstrom, beta = 108.57 (3)-degrees, and Z = 2. The structure was solved and refined to R = 0.059. The structure comprises discrete dinuclear entities resulting from pairwise association of mononuclear fragments via two extended bridging networks Cu-O-C-O...H-N-Cu, which comprise long hydrogen bonds. The geometry of each CuN3O chromophore is intermediate between square planar and tetrahedral. The magnetic study points to an antiferromagnetic (singlet) ground state. The magnitude of the magnetic interaction is discussed on the basis of structural data.

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页码：1475 / 1479

页数：5

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