209746-18-9Relevant academic research and scientific papers
Silyl and siloxanediyl cyclopentadienyl titanium and zirconium complexes: Synthesis and reactivity. X-ray molecular structure of Zr{η5-C5H4SiMe 2(μ-OH)}(μ-Cl)Cl2l2
Ciruelos, Santiago,Cuenca, Tomas,Gomez, Rafael,Gomez-Sal, Pilar,Manzanero, Antonio,Royo, Pascual
, p. 1055 - 1064 (1998)
Chloro(dimethyl)silyl-η5-cyclopentadienyl group 4 metal complexes of the type [M(η5-C5H4SiMe2 Cl)Cl3] (M = Ti 1, Zr 2) react with thallium salts Tl(C5H4R) (R = H, SiMe3) to give mixed dicyclopentadienyl derivatives [M(η5-C5H4R)(η5-C 5H4SiMe2Cl)Cl2], (M = Ti, R = H 3, R = SiMe3 4; M = Zr, R = H 5, R = SiMe3 6) in high yield. Hydrolysis of complexes 3 and 4 affords the dinuclear complexes [Ti (η5-C5H4R)Cl2] 2{μ-[(η5-C5H4SiMe 2)2O]} (R = H 7, R = SiMe3 8) containing a siloxanyl bridge, by elimination of two equivalents of HCl. Reactions of complexes 1 with hydroxo containing reagents such as anhydrous LiOH and SiPh2(OH)2 give the derivatives [Ti(η5C5H4SiMe2Cl)Cl 2]2(μ-O)], 9 and Ti[η5-C5H4SiMe2OSiPh 2-η1-O)]Cl2, 10 identified by analytical, spectrometric and spectroscopic data. Treatment of analogous complex 2 with water produces the dimeric monocyclopentadienyl zirconium trichloride adduct [Zr(η5-C5H4 SiMe2OH)Cl3]2, 11. Compound 11 has been characterized by X-ray crystallography.
