Spin-Orbit Interactions in Osmium Complexes | Sciact - CRIS-система Института катализа

Spin-Orbit Interactions in Osmium Complexes Научная публикация

Журнал

Journal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques
ISSN: 1027-4510 , E-ISSN: 1819-7094

Вых. Данные

Год: 2023, Том: 17, Номер: 3, Страницы: 630-640 Страниц : 11 DOI: 10.1134/s1027451023030217

Ключевые слова

spin–orbit interaction, osmium complex compounds, X-ray absorption spectroscopy, magnetic properties, osmium chloride, octahedral complexes, electronic structure, X-ray photoelectron spectroscopy, quantum chemistry, electron correlations

Авторы

Asanov I.P. ¹ , Fedorenko A.D. ¹ , Vasilchenko D.B. ¹ , Grebenkina M.A. ¹ , Lavrov A.N. ¹ , Korol’kov I.V. ¹ , Kriventsov V.V. ² , Trubina S.V. ¹ , Asanova T.I. ¹

Организации

1	Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
2	Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia

Информация о финансировании (2)

1	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)	FWUZ-2021-0006 (121031700314-5)
2	Российский научный фонд	22-22-00683

Osmium compounds with the Os 5d 4 electron configuration and an octahedral environment of neighboring atoms attract much attention due to the influence of the spin-orbit interaction on the appearance of magnetic properties in materials. X-ray absorption near edge structure (XANES) spectroscopy makes it possible to obtain information about the value of the spin–orbit interaction from measuring the intensity ratio of lines near the absorption edges. The influence of the spin–orbit interaction on the Os L2,3-edge XANES spectra of osmium compounds having an octahedral environment of halogen atoms is studied. Two types of systems are investigated, namely, isolated osmium clusters in complex compounds and the OsCl4 compound containing Os polymer chains bridged by Cl atoms. Magnetic-susceptibility measurements show a nonmagnetic ground state and Van Vleck paramagnetism in the case of isolated clusters and a nonzero magnetic moment over the entire temperature range in OsCl4. As a result of measurements of the XANES spectra, high values of the line intensity ratio are obtained near the Os L3/L2 absorption edges, which is associated with the strong effect of the spin-orbit interaction on the electronic structure. The theoretical analysis of the XANES spectra of Os compounds with different ligands and outer-sphere cations shows that the electronic structure and magnetic properties depend on the spin–orbit interaction, the crystal-field splitting, the electron-pairing energy, and noncubic distortions of the Os environment.

Asanov I.P. , Fedorenko A.D. , Vasilchenko D.B. , Grebenkina M.A. , Lavrov A.N. , Korol’kov I.V. , Kriventsov V.V. , Trubina S.V. , Asanova T.I.
Spin-Orbit Interactions in Osmium Complexes
Journal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques. 2023. V.17. N3. P.630-640. DOI: 10.1134/s1027451023030217 WOS Scopus РИНЦ CAPlus OpenAlex

Асанов И.П. , Федоренко А.Д. , Васильченко Д.Б. , Гребенкина М.А. , Лавров А.Н. , Корольков И.В. , Кривенцов В.В. , Трубина С.В. , Асанова Т.И.
Спин-орбитальные взаимодействия в комплексах осмия
Поверхность. Рентгеновские, синхротронные и нейтронные исследования. 2023. №6. С.3-14. DOI: 10.31857/S1028096023060043 РИНЦ OpenAlex

Поступила в редакцию:	14 сент. 2022 г.
Принята к публикации:	10 нояб. 2022 г.
Опубликована в печати:	16 июн. 2023 г.
Опубликована online:	16 июн. 2023 г.

Web of science:	WOS:001009238900015
Scopus:	2-s2.0-85162036030
РИНЦ:	54110355
Chemical Abstracts:	2023:1257150
OpenAlex:	W4380881812

Пока нет цитирований