(Indenyl)rhodacarboranes. Electronic versus steric effects on the conformation of cyclic ligands

(Indenyl)rhodacarboranes 1,2-R2-3-(η5-indenyl)-3,1,2-RhC2B9H9 (2a: R = H; 2b: R = Me) and 3-(η5-indenyl)-4-SMe-3,1,2-RhC2B9H10 (3) were synthesized by reactions of the iodide complex [(η5-indenyl)RhI2]n (1b) with Tl[Tl(η-7,8-R2-7,8-C2B9H9)] or Tl[9-SMe2-7,8-C2B9H10]. The formation of 3 is accompanied by monodemethylation of the SMe2 substituent. The structures of rhodacarboranes 2b, 3 and the half-sandwich complex (η5-indenyl)RhBr2(dmso) were determined by X-ray diffraction. Rhodacarborane 2b has the sterically unfavorable eclipsed cisoid conformation, in which the bridgehead carbon atoms of the indenyl ligand are arranged close to the carborane cage carbon atoms. The thermal stability of conformers for 2b was analyzed by the DFT calculations. © 2018 Elsevier B.V.

Авторы
Arsenov M.A.1 , Kharitonov V.B.1 , Sovdagarova E.R.1 , Smol'yakov A.F. 1, 2 , Loginov D.A.1
Язык
Английский
Страницы
45-50
Статус
Опубликовано
Том
865
Год
2018
Организации
  • 1 A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow, 119991, Russian Federation
  • 2 Faculty of Science, RUDN University, 6 Miklukho-Maklaya St., Moscow, 117198, Russian Federation
Ключевые слова
Indenyl complexes; Metallacarboranes; Rhodium; Sandwich compounds
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/6584/