RT info:eu-repo/semantics/article
T1 Silyl and siloxanediyl cyclopentadienyl titanium and zirconium complexes: synthesis and reactivity. X-ray molecular structure of [Zr{η5-C5H4SiMe2(μ-OH)}(μ-Cl)Cl2]2
A1 Ciruelos Ortega, Santiago
A1 Cuenca Agreda, José Tomás
A1 Gómez Ramírez, Rafael
A1 Gómez Sal, Pilar
A1 Manzanero Castillo, Antonio
A1 Royo Gracia, Pascual
K1 Titanium
K1 Zirconium
K1 Siloxanediyl cyclopentadienyl
K1 Hydroxide
K1 Ciencia
K1 Química inorgánica
K1 Science
K1 Chemistry, inorganic
AB Chloro(dimethyl)silyl-η5-cyclopentadienyl group 4 metal complexes of the type [M(η5-C5H4Cl)Cl3] (Full-size image (<1 K)) react with thallium salts Tl(C5H4R) (R = H, SiMe3) to give mixed dicyclopentadienyl derivatives [M(η5-C5H4R)(η5-C5H4SiMe2Cl)Cl2], (M = Ti, R = H 3, R = SiMe34; M = Zr, R = H 5, R = SiMe36) in high yield. Hydrolysis of complexes 3 and 4 affords the dinuclear complexes [Ti(η5-C5H4R)Cl2]2{μ-[(η5-C5H4SiMe2)2O]}] [R = H 7, R = SiMe38) 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(η5-C5H4SiMe2Cl)Cl2]2(μ-O)], 9 and Ti[μ-(η5-C5H4SiMe2OSiPh2-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-C5H4SiMe2OH)Cl3]2, 11. Compound 11 has been characterized by X-ray crystallography.
PB Pergamon
SN 0277-5387
YR 1998
FD 1998
LK http://hdl.handle.net/10017/4327
UL http://hdl.handle.net/10017/4327
LA eng
NO Universidad de Alcalá
DS MINDS@UW
RD 25-abr-2024