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Coordination chemistry of anticrowns. Complexation of cyclic trimeric perfluoro-o-phenylenemercury (o-C6F4Hg)(3) with the cyanoborohydride anion [H3BCN](-) and triethylamineborane Et3NBH3статья
Информация о цитировании статьи получена из
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 марта 2017 г.
- Авторы: Tsupreva V.N., Filippov O.A., Dolgushin F.M., Tugashov K.I., Krylova A.I., Bragin V.I., Tikhonova I.A., Shur V.B., Epstein L.M., Shubina E.S.
- Журнал: Russian Chemical Bulletin
- Том: 57
- Номер: 12
- Год издания: 2008
- Издательство: Springer Nature
- Местоположение издательства: Switzerland
- Первая страница: 2540
- Последняя страница: 2547
- DOI: 10.1007/s11172-008-0365-4
- Аннотация: As was shown by IR spectroscopy, the reaction of the three-mercury anticrown (o-C6F4Hg)(3) (1) with the [H3BCN]ion in THF affords the complexes {[(o-C6F4Hg)(3)][H3BCN](5) and [(o-C6F4Hg)(3)](2)[H3BCN](6). Complex 6 was isolated from solution in the analytically pure state. According to X-ray diffraction data, complex 6 has a double-decker sandwich structure, in which the borohydride group of the [H3BCN](-) anion is bound to one anticrown molecule by three B-H-Hg bridges, whereas the cyanide group is cooperatively coordinated by three mercury centers of another molecule 1 through the nitrogen atom. The reaction of compound 1 with triethylamineborane Et3NBH3 in THF affords the 1: 1 complex similar to[(o-C6F4Hg)(3)][Et3NBH3]similar to (7). In this adduct, the binding of the aminoborane to the mercury anticrown is also accomplished by B-H-Hg bridges. The stability constants of complexes 5 and 6 in THF were determined.
- Добавил в систему: Шубина Елена Соломоновна