265309-29-3Relevant academic research and scientific papers
Synthesis, structure, and reactivities of the Ru-Co heterobimetallic complex
Matsuzaka, Hiroyuki,Ichikawa, Koji,Ishioka, Tomohiro,Sato, Haru,Okubo, Takashi,Ishii, Tomohiko,Yamashita, Masahiro,Kondo, Mitsuru,Kitagawa, Susumu
, p. 121 - 129 (2000)
Treatment of Cp*Ru(CO)2Cl (Cp* = η5-C5Me5) with NaCo(CO)4 produces the metal-metal bonded heterobimetallic complex Cp*Ru(CO)2(μ2-CO)Co(CO)3 (2b). Substitution of the CO ligands by the Ph2PCH2PPh2 (dppm) leads to the isolation of Cp*Ru(μ2-CO)2(μ2-dppm)Co(CO) 2 (3) whereas that by ButNC gives Cp*Ru(CO)(CNBut)(μ2-CO)Co(CO)3 (4). Stoichiometric head-to-tail dimerization of p-tolylacetylene at the bimetallic site of 2b proceeds to form the dinuclear metallacyclopentadiene complex Cp*(CO)Ru{η2:η4-μ 2-C(Tol)CHC(Tol)CH}Co(CO)2 (5) in which two alkyne molecules are coupled to form a ruthenacyclopentadiene core which coordinates to the Co(CO)2 fragment. On the other hand, catalytic head-to-head coupling of methyl propiolate in the presence of 2b yields (E)-(MeO2C)CH=CH(C=CCO2Me) (6). The molecular structures of 2b, 3, 4, and 5 have been determined by X-ray crystallography.
Heterobimetallic ruthenium-cobalt complexes containing the pentamethylcyclopentadienyl or indenyl ligand
Ng, Sin Yee,Goh, Lai Yoong,Koh, Lip Lin,Leong, Weng Kee,Tan, Geok Kheng,Ye, Suming,Zhu, Yinghuai
, p. 663 - 670 (2007/10/03)
The salt elimination reaction between NaCo(CO)4 and the ruthenium complexes LRu(diphos)Cl and [(Ind)Ru(CO)2Cl] afforded the Ru-Co bimetallic complexes [LRu(μ-CO)2(μ-diphos)Co(CO) 2] [L = C5Me5 (Cp*), diphos = Ph 2P(CH2)nPPh2, 3a: n = 1 , or 3b: n = 2; 3. L = C9H7 (Ind), diphos = Ph2PCH 2PPh2 ] and [(Ind)Ru(CO)2Co(CO)4] (3d), respectively, in high yields. However, the same reaction with the monophosphane analogue, [(Ind)Ru(PPh3)2Cl], gave the heterobimetallic complex [(Ind)Ru(PPh3)(CO)(μ-CO)Co(CO) 3] (3e) in fair yield, together with redox-initiated derivatives Ru(PPh3)2(CO)3 (4e) and [(Ind)Co(CO)(PPh 3)] (6e). A similar redox process in the reaction of the dppf analogue, [(Ind) Ru(dppf)Cl] (dppf = 1,1′-diphenylphosphanylferrocene) gave [Ru(dppf)(CO)3] (4f) and [(Ind)Co(CO)2] (6f), together with a complex salt [(Ind)Ru(dppf)(CO)][Co(CO4)] [5f·Co(CO)4]. Wiley-VCH Verlag GmbH & Co. KGaA, 2006).
