949110-36-5Relevant academic research and scientific papers
Reactions of SiH-functionalized cyclopentadienes with metal carbonyls
Chen, Dafa,Guo, Jian,Xu, Shansheng,Song, Haibin,Wang, Baiquan
, p. 4212 - 4219 (2008/10/09)
Thermal treatment of the SiH-functionalized cyclopentadienes (RC 5H4)SiHMeR′ [R = H, R′ = Ph (1), PhCH 2 (2); R = t-Bu, R′ = Ph (3), PhCH2 (4)] with Ru2(CO)12 gave the cyclic dinuclear metal complexes trans-[(R′MeSi)(η5-RC5H3)Ru(CO) 2]2 [R = H, R′ = Ph (7), PhCH2 (8); R = f-Bu, R′ = Ph (10), PhCH2 (H)] containing two Si-Ru bonds via Si-H activation. A cyclopentenyl complex, [(η2-C 5H7)SiMe(CH2Ph)Ru(CO)3]2 (9), bridged by a vinylsilyl ligand was also obtained from the reaction, but reactions of the SiH-functionalized tetramethylcyclopentadienes (C 5Me4H)SiHMeR′ [R′ = Ph (5), PhCH2 (6)] with Ru3(CO)12 only gave the cyclic diruthenium complex [(PhMeSi)(η-C5Me4)]Ru2(CO) 6 (12) with one Si-Ru bond and the desilylation product [(η5-C5Me4H)Ru(CO)]2(μ-CO) 2 (13). When 2 and 4 reacted with M(CO)6, the similar cyclic dinuclear complexes trans-[(PhCH2MeSi)(η-RC 5H3)M(CO)3]2 [R = H, M = W (18); R = t-Bu, M = Mo (15), W (20)] were obtained, in addition to the desilylation products [(η-RC5H4)M-(CO)3]2 [R = H, M = Mo (14), W (19); R = t-Bu, M = Mo (16), W (21)], but reactions of 6 with M(CO)6 only gave the desilylation products [(η-C 5Me4H)M(CO)3]2 [M = Mo (17); M = W (22)]. The molecular structures of 7, 9, 12, 13, 15, 18, and 20 were determined by X-ray diffraction.
