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Effect of a metal ion on intramolecular spin exchange in spin-labeled complexes Научная публикация

Журнал Russian Chemical Bulletin
ISSN: 1066-5285 , E-ISSN: 1573-9171
Вых. Данные Год: 1999, Том: 48, Номер: 10, Страницы: 1982-1986 Страниц : 5 DOI: 10.1007/BF02494758
Ключевые слова noble metals; nitroxyl radicals metal complexes; structure; spin exchange ESR spectra
Авторы Kokorin A.I. 1 , Evstiferov M.V. 1 , Grigor'ev I.A. 2 , Reznikov V.A. 2 , Grampp G. 3
Организации
1 N. N. Semenov Institute of Chemical Physics, Russian Academy of Sciences, 4 ul. Kosygina, 117977, Moscow, Russian Federation
2 N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 9 prosp. Akad. Lavrent'eva, 630090, Novosibirsk, Russian Federation
3 Institute of Physical and Theoretical Chemistry of the Technical University, 12, Rechbauers str., A-8010, Graz, Austria

Реферат: The characteristic features of intramolecular spin exchange in 14 complexes of Ag-I, Hg-II, Ni-II, Pd-II, Pt-II, Au-III, and Pt-IV with spin-labeled ligands were studied by ESR spectroscopy. The measured values of the exchange integral \J\ and the differences between the enthalpies of the efficient conformations (Delta H) were compared with the electronic polarization (refraction) R-f of the Ni-II, Pd-II, and Pt-II ions and Klopman's rigidity parameters sigma(K), which characterize the total polarazibility of the ions and the degree of covalence of the bond between the metal atom and the donor atom of the ligand, respectively. Delocalization of the electron spin density and the efficiency of spin exchange are determined by the relative contributions of the s, p, and d orbitals. which produce the overlap integral of wave functions, \J\, and by the geometric features of the coordination polyhedron, which affect the mutual orientation of the N-O fragments.
Библиографическая ссылка: Kokorin A.I. , Evstiferov M.V. , Grigor'ev I.A. , Reznikov V.A. , Grampp G.
Effect of a metal ion on intramolecular spin exchange in spin-labeled complexes
Russian Chemical Bulletin. 1999. V.48. N10. P.1982-1986. DOI: 10.1007/BF02494758 WOS Scopus РИНЦ OpenAlex
Даты:
Опубликована в печати: 1 окт. 1999 г.
Идентификаторы БД:
Web of science: WOS:000084379200029
Scopus: 2-s2.0-0033235220
РИНЦ: 13327727
OpenAlex: W2000005386
Цитирование в БД:
БД Цитирований
Web of science 2
Scopus 2
РИНЦ 2
OpenAlex 2
Альметрики: