Synthesis and crystal structures of dinuclear trichloro(tetramethylcyclopentadienyl) titanium complexes

0305712 - ÚFCH JH 2008 RIV CZ eng J - Journal Article
Lukešová, Lenka - Gyepes, R. - Varga, V. - Pinkas, Jiří - Horáček, Michal - Kubišta, Jiří - Mach, Karel
Synthesis and crystal structures of dinuclear trichloro(tetramethylcyclopentadienyl) titanium complexes.
[Příprava a krystalové struktury dvoujaderných trichloro(tetramethylcyklopentadienyl) titaničitých komplexů.]
Collection of Czechoslovak Chemical Communications. Roč. 71, č. 2 (2006), s. 164-178. ISSN 0010-0765
R&D Projects: GA AV ČR KJB400400602
Institutional research plan: CEZ:AV0Z40400503
Keywords : titanium * dinuclear complexes * half-sandwich titanocene * silicon bridge
Subject RIV: CF - Physical ; Theoretical Chemistry
Impact factor: 0.881, year: 2006

Dinuclear half-sandwich complexes [{TiCl3(eta(5)-C5Me4)}(2)SiMe2] (2) and [{TiCl3(eta(5)-(CMe4SiMe2CH2)-Me-5)}(2)] (4) were prepared by synproportionation of ansa-titanocene dichlorides [TiCl2{(eta(5)-C5Me4)(2)SiMe2}] (1) and [TiCl2(eta(5)-C5Me4SiMe2CH2)(2)] (3), respectively, with TiCl4. Compound 3 was synthesized from 1,2-bis(chlorodimethylsilyl)ethane, 1,2,3,4-tetramethylcyclopentadienyllithium, and [TiCl3(thf)(3)] by a common procedure. Crystal structures of 2, 3, and 4 were determined by X-ray diffraction analysis. Keywords: Titanium; Dinuclear complexes; Half-sandwich titanocene; Silicon bridge; ansa-Titanocene; Crystal structure; Metallocenes; X-ray diffraction.

Dvoujaderné komplexy [{TiCl3(.eta.5-C5Me4)}2SiMe2] (2) a [{TiCl3(.eta.5-C5Me4SiMe2CH2)}2] (4) byly připraveny synproporcionací ansa-titanocen dichloridů [TiCl2{{.eta.5-C5Me4)2SiMe2}] (1) a [TiCl2(.eta.5-C5Me4SiMe2CH2)2] (3) s TiCl4. Komplex 3 byl připraven sledem standardních reakcí z 1,2-bis(chlorodimethylsilyl)ethanu, 1,2,3,4-tetramethylcyklopentadienyllithia a [TiCl3(thf)3]. Krystalové struktury sloučenin 2, 3 a 4 byly určeny Rentgenovou difrakční analýzou monokrystalů.
Permanent Link: http://hdl.handle.net/11104/0158912