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![]() OSTROVSCHII, Serghei, CLOCHIŞNER, Sofia. Tranziția de spin indusă de temperatură în complexul Co(II). In: Revista de Ştiinţă, Inovare, Cultură şi Artă „Akademos”, 2021, nr. 4(63), pp. 32-36. ISSN 1857-0461. DOI: https://doi.org/10.52673/18570461.21.4-63.03 |
EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
Revista de Ştiinţă, Inovare, Cultură şi Artă „Akademos” | |||||||
Numărul 4(63) / 2021 / ISSN 1857-0461 /ISSNe 2587-3687 | |||||||
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DOI:https://doi.org/10.52673/18570461.21.4-63.03 | |||||||
CZU: 538.915+539. | |||||||
Pag. 32-36 | |||||||
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Rezumat | |||||||
A microscopic theoretical approach for the description of spin transitions in mononuclear Co(II) compounds is suggested. Two types of interionic interactions are taken into account, namely, the electron-deformational interaction and the cooperative Jahn-Teller interaction arising from the coupling of the low-spin state of the Co(II) ion with the tetragonal vibrations of the nearest surrounding. The different role of these interactions in the spin transformation is demonstrated and discussed. A qualitative and quantitative explanation of the experimental data on the temperature dependence of the magnetic susceptibility for the [Co(pyterpy)2](PF6)2 compound is given. |
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Cuvinte-cheie cooperative electron-deformational interaction, Jahn-Teller ordering, spin crossover, interacțiunea cooperativă electron-deformațională, ordonarea Jahn-Teller, crossoverul de spin |
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