86050-32-0Relevant articles and documents
Stereorigid titanocene and zirconocene derivatives. Synthesis and crystal structure of the dialkyl complex 5-η5-(C5H4)2Si(CH3)2>Ti2
Gomez, Rafael,Cuenca, Tomas,Royo, Pascual,Herrmann, W. A.,Herdtweck, E.
, p. 103 - 108 (1990)
Reaction of M'25-C5H4)2Si(CH3)2> (M'=Li, Na, K) with MCl4 produced the known complexes 5-C5H4)2Si(CH3)2>MCl2 (M=Ti (1) and Zr (2)).Along with the predominant product in each case a new titanium and zirconium compound is isolated.Treatment of the complexes 1 and 2 with LiCH2Si(CH3)3 gives the novel derivatives 5-C5H4)2Si(CH3)2>M2 (M=Ti (4) and Zr (5)) which have been characterized by NMR and mass spectrometry and in the case of 4 by an X-ray structural determination.
Ancillary ligand and ketone substituent effects on the rate of ketone insertion into Zr-C bonds of zirconocene-l-Aza-l,3-diene complexes
Zhang, Jie,Krause, Jeanette A.,Huang, Kuo-Wei,Guan, Hairong
, p. 2938 - 2946 (2009/10/24)
Zirconocene-l-aza-l,3-diene complexes, [Me2Si(C 5H4)2]Zr[N(Ar)CH=CHCH(Ph)] (Ar = Ph, 2a; Ar = /J-MeOC5H4, 2b) and Cp2Zr[N(Ar)CH=CHCH(Ph)] (Ar = Ph, 3a; Ar = p-MeOC6Hs
Dicyclopentadienyl zirconium and hafnium complexes with the bridged (dimethylsilanodiyl)dicyclopentadienyl [(SiMe2)(η5-C5H4) 2]2- ligand. X-ray molecular structure of [Zr{(SiMe2)(η5-C5H4) 2}(CH2Ph)]2(μ-O)
Cuenca, Tomas,Gomez-Sal, Pilar,Martin, Carlos,Royo, Beatriz,Royo, Pascual
, p. 134 - 140 (2007/10/03)
Reaction of the bridged (dimethylsilanediyl)dicyclopentadienyl dilithium salt [(SiMe2)(C5H4)2Li2] with MCl4, in toluene, gave the zirconium and hafnium complexes [M{(SiMe2)(η5-C5H4) 2}Cl2] [M=Zr (1), Hf (2)]. Addition of two equivalents of M′R (M′=MgCl, R=CH3; M′=Li, R=CH2CMe2Ph; M′=MgBz, R=CH2Ph) to toluene or diethyl ether solutions of [M{(SiMe2)(η5-C5H4) 2}Cl2] afforded the dialkyl derivatives [M{(SiMe2)(η5-C5H4) 2}R2] [R=CH3, M=Zr (3), Hf (4); R=CH2CMe2Ph, M=Zr (5), Hf (6); R=CH2Ph, M=Zr (7)]. Compound 1 reacted with LiMe and Mg(CH2Ph)2(THF)2 in the presence of a stoichiometric amount of water to give the μ-oxo derivatives [Zr{(SiMe2)(η5-C5H4) 2}R]2(μ-O) [R=CH3 (8), CH2Ph (9)]. The X-ray molecular structure of [Zr{(SiMe2)(η5-C5H4) 2}(CH2Ph)]2(μ-O) (9) has been determined by diffraction methods. Its most remarkable feature is the planarity of the Bz-Zr-O-Zr-Bz and the linearity of the Zr-O-Zr systems.
