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), Journal Name: Sov. J. Coordinat. Chem.; (United States) Vol. 13:7; ISSN SJCCD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
657002 -- Theoretical & Mathematical Physics-- Classical & Quantum Mechanics
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ANTIFERROMAGNETISM
COMPLEXES
COPPER COMPLEXES
CRYSTAL MODELS
CRYSTAL STRUCTURE
DIFFERENTIAL EQUATIONS
DIRAC EQUATION
ELECTRONIC STRUCTURE
EQUATIONS
HEISENBERG MODEL
HETEROCYCLIC COMPOUNDS
HYDROXY COMPOUNDS
IMINES
INFRARED SPECTRA
LIGANDS
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETISM
MATHEMATICAL MODELS
MECHANICS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PARAMAGNETISM
PARTIAL DIFFERENTIAL EQUATIONS
PHYSICAL PROPERTIES
QUANTUM MECHANICS
SPECTRA
TRANSITION ELEMENT COMPLEXES
VAN VLECK THEORY
WAVE EQUATIONS