849411-72-9Relevant academic research and scientific papers
Synthesis and reactions of polynuclear polyhydrido rare earth metal complexes containing (C5Me4SiMe3)LnH 2 units: A new frontier in rare earth metal hydride chemistry
Hou, Zhaomin,Nishiura, Masayoshi,Shima, Takanori
, p. 2535 - 2545 (2007)
A series of tetranuclear octahydrido rare earth metal complexes of general formula [(C5Me4SiMe3)Ln(μ-H) 2]4(THF)n (Ln = Sc, Y, Gd, Dy, Ho, Er, Tm, Lu; n = 0, 1, or 2) that contain C5Me4SiMe3 as an ancillary ligand have been prepared and structurally characterized. These hydride clusters are soluble in common organic solvents such as THF, toluene, and hexane, and maintain their tetranuclear framework in solution. Such polynuclear polyhydrido complexes exhibit extremely high and unique reactivity toward a variety of unsaturated substrates including CO, CO2, and nitriles. The reaction of these neutral polyhydrides with one equivalent of [Ph3C][B(C6F5)4] affords the corresponding cationic hydride clusters [(C5Me4SiMe 3)4Ln4H7(THF)n][B(C 6F5)4], which can act as catalysts for the syndiospecific polymerization of styrene and regio- and stereospecific cis-1,4-polymerization of 1,3-cyclohexadiene. Wiley-VCH Verlag GmbH & Co. KGaA, 2007.
Lanthanide-imido complexes and their reactions with benzonitrile
Cui, Dongmei,Nishiura, Masayoshi,Hou, Zhaomin
, p. 959 - 962 (2007/10/03)
Highly reactive imido ligands, even when in a bridging mode as in 1, distinguish lanthanide-imido complexes from their d-block counterparts. For example, imido species 1 can undergo nucleophilic addition to benzonitrile to give 2. Catalytic cyclotrimerization of benzonitrile occurs in the presence of 1 or 2 by a unique combination of C-N bond-formation, hydrogen-transfer, and C-N bond-cleavage reactions (see scheme).
