Copper(II) complexes with heterocyclic hydroxyimino-containing ligands
The reaction of oximes (R = Ph (L'), C=N (L'')) with the copper(II) salts CuA/sub 2/ in methanol has given the complexes CuL/sub 2/ ' x H/sub 2/O and CuL/sub 2//sup ''/ x 2H/sub 2/O (I) (A = Acet/sup -/), CuHLCl/sub 2/ x H/sub 2/O (II) (A = Cl/sup -/), CuLOH(ClO/sub 4/)/sub 2/ x 2H/sub 2/O (III) (A = ClO/sub 4//sup -/) and the complexes Cu/sub 3/L/sub 3//sup '/OH(NO/sub 3/)/sub 2/ and Cu/sub 3/L/sub 3//sup ''/(OH)/sub 2/NO/sub 3/ (IV) (A = NO/sub 3//sup -/). Their physicochemical properties have been studied by the methods of IR spectroscopy and magnetochemistry. It has been shown that complexes I have a chelate structure and that their magnetic moments are not dependent on the temperature. An anti-ferromagnetic exchange interaction takes place in complexes II-IV. On the basis of magnetochemical measurements over a broad temperature range and data calculated in the framework of the Heisenberg-Dirac-Van Vleck model of isotropic exchange interactions, a dimeric structure has been proposed for the complexes of type II, and a trinuclear cluster structure has been proposed for complexes III and IV.
- Research Organization:
- M. A. Suslov Rostov State Univ. (USSR)
- OSTI ID:
- 7182739
- Journal Information:
- Sov. J. Coordinat. Chem.; (United States), Vol. 13:7; Other Information: Translated from Koordinatsionnaya Khimiya; 13: No. 7, 879-885(Jul 1987)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COPPER COMPLEXES
ANTIFERROMAGNETISM
INFRARED SPECTRA
MAGNETIC PROPERTIES
CRYSTAL STRUCTURE
DIRAC EQUATION
ELECTRONIC STRUCTURE
HEISENBERG MODEL
HETEROCYCLIC COMPOUNDS
HYDROXY COMPOUNDS
IMINES
LIGANDS
MAGNETIC MOMENTS
PARAMAGNETISM
QUANTUM MECHANICS
VAN VLECK THEORY
COMPLEXES
CRYSTAL MODELS
DIFFERENTIAL EQUATIONS
EQUATIONS
MAGNETISM
MATHEMATICAL MODELS
MECHANICS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PARTIAL DIFFERENTIAL EQUATIONS
PHYSICAL PROPERTIES
SPECTRA
TRANSITION ELEMENT COMPLEXES
WAVE EQUATIONS
640302* - Atomic
Molecular & Chemical Physics- Atomic & Molecular Properties & Theory
657002 - Theoretical & Mathematical Physics- Classical & Quantum Mechanics