The Nature of the Spin-State Variation of [FeII(BPMEN)(CH3CN)2](ClO4)2 in Solution Краткое сообщение
Журнал |
European Journal of Inorganic Chemistry
ISSN: 1434-1948 , E-ISSN: 1099-0682 |
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Вых. Данные | Год: 2005, Номер: 1, Страницы: 72-76 Страниц : 5 DOI: 10.1002/ejic.200400429 | ||
Ключевые слова | Iron(II) complexes, Liquid state, Magnetic properties, Solvent effects, Spin crossover | ||
Авторы |
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Организации |
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Информация о финансировании (1)
1 | Российский фонд фундаментальных исследований | 03-03-32009 |
Реферат:
Thermally-induced spin variation behavior of [FeII(BPMEN)(CH3CN)2](ClO4)2 in CD3CN solution [low spin (LS)−high spin (HS)] was investigated. Variable temperature solution magnetic susceptibility measurements gave ΔH°LS−HS = 39.7 ± 2.0 kJ·mol−1 and ΔS°LS−HS = 135 ± 9 J·mol−1 K−1 values. These values are too high for a pure spin transition and reflect a significant contribution of chemical processes to the spin transition, namely, the detected dissociation of one bound acetonitrile molecule. Thus, LS−HS conversion should be regarded as a chemical equilibrium overlapped with a thermal spin crossover. The thermodynamic parameters for the overall process estimated from the variation of the NMR shifts with temperature (ΔH° = 40 ± 3 kJ·mol−1, ΔS° = 137 ± 10 J·mol−1 K−1) are in perfect agreement with those obtained by magnetic susceptibility measurements.
Библиографическая ссылка:
Bryliakov K.P.
, Duban E.A.
, Talsi E.P.
The Nature of the Spin-State Variation of [FeII(BPMEN)(CH3CN)2](ClO4)2 in Solution
European Journal of Inorganic Chemistry. 2005. N1. P.72-76. DOI: 10.1002/ejic.200400429 WOS Scopus РИНЦ
The Nature of the Spin-State Variation of [FeII(BPMEN)(CH3CN)2](ClO4)2 in Solution
European Journal of Inorganic Chemistry. 2005. N1. P.72-76. DOI: 10.1002/ejic.200400429 WOS Scopus РИНЦ
Даты:
Поступила в редакцию: | 24 мая 2004 г. |
Опубликована online: | 30 дек. 2004 г. |
Опубликована в печати: | 1 янв. 2005 г. |
Идентификаторы БД:
Web of science | WOS:000226356600009 |
Scopus | 2-s2.0-12344305406 |
РИНЦ | 13494708 |
Chemical Abstracts | 2005:79091 |
Chemical Abstracts (print) | 143:18214 |
OpenAlex | W1978040783 |