EPR INVESTIGATION OF THE ORIGIN OF THE MAGNETIC FIELD EFFECT ON THE DIMERIZATION OF ALUMINUM(III) AND GALLIUM(III) PHTHALOCYANINE CHLORIDES IN FILM STRUCTURES
A. S. Berezin, V. A. Nadolinnyi, T. V. Basova
A. V. Nikolaev Institute of Inorganic Chemistry, Siberian Division, Russian Academy of Sciences, Novosibirsk
spectr@niic.nsc.ru
Keywords: aluminum(III) phthalocyanine, gallium(III) phthalocyanine, spin trap, magnetic moment, EPR
Abstract
The origin of the magnetic field effect on the dimerization of aluminum(III) and gallium(III) phthalocyanine chloride films is revealed. The EPR technique is employed to demonstrate that the dimerization of the above coordination compounds occurs via a free radical pathway with the formation of phthalocyanine and OH radicals, thus resulting in the appearance of the magnetic moment in the studied compounds.
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