Magnetism and electronic structure of triplet binuclear niobium complexes in inorganic glasses, organic ligand environment, and polymers

Авторы: Rakhimov R.R., Arrington S.A., Jackson E.M., Hwang J.S., Prokof\textquotesingleev A.I., Alexandrov I.A., Aleksandrov A.I.
Журнал: Journal of Applied Physics
Том: 97
Номер: 10
Год издания: 2005
Издательство: AIP Publishing
Местоположение издательства: United States
Первая страница: 10A302
DOI: 10.1063/1.1845791
Аннотация: We investigated paramagnetic properties of binuclear niobium complexes Nb–O–Nb with twononequivalent Nb4+ ions in lithium–niobium phosphate glasses sLNPGd, in the environment ofcatechol/ortho-quinone ligands and in polyethylene. Experimental electron paramagnetic resonancespectrum analysis revealed nonequivalent distribution of the charge and electron spin densitybetween two Nb atoms. Mechanochemical interaction of LNPG with an organic donor–acceptormixture catechol/ortho-quinone followed by organic solvent extraction leads to the formation of anew binuclear complex with catechol/ortho-quinone ligands. This complex can be furtherincorporated into polyethylene matrix to form the complex with properties close to the complex inLNPG.
Добавил в систему: Александров Алексей Иванович

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