Ferromagnetic vs antiferromagnetic coupling in structurally analogous binuclear complexes based on salen type ligand

被引：0

作者：

Pandey, Rampal ^{[1
]}

Ribas, Joan ^{[2
]}

Corbella, Montserrat ^{[2
]}

Pandey, Daya Shankar ^{[1
]}

机构：

[1] Banaras Hindu Univ, Fac Sci, Dept Chem, Varanasi 221005, Uttar Pradesh, India

[2] Univ Barcelona, Dept Quim Inorgan, E-08028 Barcelona, Spain

来源：

INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY | 2011年 / 50卷 / 9-10期

关键词：

Coordination chemistry; Supramolecular assembly; Polymetallic complexes; Dinuclear complexes; Schiff bases; Ferromagnetic coupling; Antiferromagnetic coupling; Electrochemical properties; Cryomagnetic properties; Cobalt; Copper; Nickel; Zinc; Cadmium; NEUTRON-SCATTERING SPECTRA; FLUORESCENT ZINC SENSORS; BULK MAGNETIC-PROPERTIES; SCHIFF-BASE; METAL-COMPLEXES; COORDINATION-COMPOUNDS; AROMATIC INTERACTIONS; CRYSTAL-STRUCTURES; ENERGY-LEVELS; CU-II;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Syntheses of the dinuclear complexes [Co(C23H18N2O2)](2) (1), [Co(C23H18N2O2)](2)center dot H2O (2), [Ni(C23H18N2O2)](2) (3), [Zn(C23H18N2O2)](2) (4) and [Cd(C23H18N2O2)](2) (5) containing the Schiff base ligand N,N'-bis(2-hydroxybenzilidene)-2,4,6-trimethylbenzene-1,3-diamine have been described. The complexes under investigation have been characterized by elemental analyses, IR, NMR (H-1, C-13), electronic absorption, emission and EPR spectral studies. The structure of (1) has been determined by X-ray single crystal analyses. Variable temperature magnetic susceptibility measurements on (1) and (2) reveal that the former displays antiferromagnetic coupling (J = -0.21 +/- 0.1 cm(-1)), while the latter exhibits ferromagnetic coupling (J = + 1.23 +/- 0.1 cm(-1)).

引用

页码：1450 / 1456

页数：7

共 52 条

[1] [(Pyridylcarbonyl)pyridyl]triazolopyridines, useful ligands for the construction of polynuclear coordination compounds - Synthesis, crystal structure and magnetic properties of a novel tetranuclear copper(II) cubane [J].