Coordination modes of novel rhodanine azodye complexes

被引：21

作者：

El-Bindary, AA ^{[1
]}

El-Sonbati, AZ ^{[1
]}

Ahmed, RM ^{[1
]}

机构：

[1] Univ Mansoura, Fac Sci, Dept Chem, Dumyat, Egypt

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2002年 / 58卷 / 02期

关键词：

rhodanine azodye; solid complexes; EPR; stereochemistry;

D O I：

10.1016/S1386-1425(01)00538-8

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The reaction products of metal(II) salts with 5-sulphamethoxazoleazo-3-phenyl-2-thioxo-4-thiazolidinone (H2L) have been characterized by elemental analyses, magnetic susceptibility, electronic, infrared and electron paramagnetic resonance spectral measurements. The spectral data suggest a square pyramidal structure for Cu(II) and Co(II) complexes and an octahedral for Ni(II) complexes. Various EPR parameters have been calculated. From the electron paramagnetic resonance and spectral data, the orbital reduction factors were calculated. In all case k(perpendicular to) > k(parallel to) which indicates B-2(1g) ground state. These five coordinated complex of Cu(II) react further with pyridine forming six coordinate base adduct. The different modes of chelation of the ligand and stereochemistry around the metal ion are discussed. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：333 / 339

页数：7

共 23 条

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[2]

CARLING RL, 1965, TRANSITION METAL CHE, V1

[3]

El-Bindary AA, 2000, POL J CHEM, V74, P615

[4] Stereochemistry of new nitrogen containing heterocyclic aldehydes. II. Novel bis-bidentate azodye compounds [J].