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Low-valent titanocene products from attempted syntheses of titanocene bearing dimethyl(3,3,3-trifluoropropyl)silyl groups
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SYSNO ASEP 0026029 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Low-valent titanocene products from attempted syntheses of titanocene bearing dimethyl(3,3,3-trifluoropropyl)silyl groups Title Nízkovalentní titanocenové produkty vznikajícíÍ při přípravě titanocenu nesoucího (3,3,3-trifluoropropyl)dimetylsilylovou skupinu Author(s) Lukešová, Lenka (UFCH-W)
Horáček, Michal (UFCH-W) RID, ORCID
Gyepes, R. (CZ)
Císařová, I. (CZ)
Štěpnička, P. (CZ)
Kubišta, Jiří (UFCH-W) RID, ORCID
Mach, Karel (UFCH-W) ORCID, RIDSource Title Collection of Czechoslovak Chemical Communications. - : Ústav organické chemie a biochemie AV ČR, v. v. i. - ISSN 0010-0765
Roč. 70, č. 1 (2005), s. 11-33Number of pages 23 s. Language eng - English Country CZ - Czech Republic Keywords metallocenes ; sandwich complexes ; titanium ; titanocenes ; magnesium Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects GA203/02/0774 GA ČR - Czech Science Foundation (CSF) GA203/02/0436 GA ČR - Czech Science Foundation (CSF) GA203/99/M037 GA ČR - Czech Science Foundation (CSF) KSK4050111 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z40400503 - UFCH-W (2005-2011) Annotation Reduction of silyl-substituted titanocene dichloride [TiCl2{.eta.5-C5Me4(SiMe2CH2CH2CF3)}2] (1) with one molar equivalent of magnesium afforded a mixture of products, thus precluding the isolation of the possibly formed titanocene [Ti{(.eta.5-C5Me4(SiMe2CH2CH2CF3)}2]. The presence of isolable monochloride [TiCl{.eta.5-C5Me4(SiMe2CH2CH2CF3)}2] (2) in the mixture indicates that the mangnesium is consumed in concurrent reactions, that produce various titanocene compounds of which some were obtained by the reduction of 1 with excess magnesium. Those include the trinuclear TiIII-MgII-TiIII hydride-bridged complex [Ti{.eta.5-C5Me4(SiMe2CH2CH2CF3)}2(.mu.-H)2]2Mg (3) and a dimeric dinuclear Ti-Mg complex (4) containing the [TiIII(.mu.-H)2Mg(.mu.-X)]2 core where, however, the nature of the bridging moiety X remains unknown. ... Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2006
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