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Synthesis of 11-vertex cobalt bis(diphenylphosphine) complexes based on medium-size non-icosahedral carborane 5,6-nido-C2B8H12. Molecular structure of complex [1,1-{k2-1´,2´-Ph2P(CH2)2PPh2}-1-H-isonido-1,2,4-CoC2B8H10]статья
- Авторы: Balagurova E.V., Tyurin A.P., Godovikov I.A., Dolgushin F.M., Chizhevsky I.T.
- Журнал: Russian Chemical Bulletin
- Том: 73
- Номер: 10
- Год издания: 2024
- Издательство: Springer Nature
- Местоположение издательства: Switzerland
- Первая страница: 2890
- Последняя страница: 2899
- Аннотация: The reactions of suspensions of the freshly prepared complexes [Ph2P(CH2)nPPh2]CoCl2(n = 2 (dppeCoCl2), n = 3 (dpppCoCl2), n = 4 (dppbCoCl2); dppe isbis(diphenylphosphino)ethane, dppp is 1,3-bis(diphenylphosphino)propane, dppb is 1,4-bis(diphenylphosphino)butane) with the salts [Na][R2C2B8H9] (R = H, Ph), which wereobtained in situ by the treatment of carboranes 5,6-nido-R2C2B8H10 (R = H (1a), Ph (1b))with NaH in THF at room temperature, afforded 18-electron cobaltahydridocarboranes withisonido structures, [1,1-{k2-Ph2P(CH2)nPPh2}-1-H-isonido-1,2,4-CoR2C2B8H8] (R = H, n =2 (2a), 3 (2b), 4 (2c); R = Ph, n = 2 (2d)). The treatment of nido-carborane 1a withpotassium hydroxide followed by the addition of [Ph2P(CH2)nPPh2]CoCl2 (n = 2—4) inethanol at 20 °C resulted in the formation of ethoxy-substituted complexes [1,1-{k2-Ph2P(CH2)nPPh2}-1-H-3-(EtO)-isonido-1,2,4-CoC2B8H9] (3a—c, n = 2—4) apart fromcompounds 2a—c. All the newly prepared compounds were characterized by a combinationof elemental analysis, multinuclear NMR spectroscopy, and IR spectroscopy. The structureof complex 2a was studied by X-ray diffraction analysis.
- Добавил в систему: Балагурова Елена Владимировна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | экспертное заключение | эксп_заключ_кобальт_DPPP.jpeg | 2,0 МБ | 28 ноября 2024 [BalagurovaEV] | |
| 2. | Полный текст | известия_2024.pdf | 533,6 КБ | 6 декабря 2024 [BalagurovaEV] |