Počet záznamů: 1

Dinuclear titanium complexes with methylphenylsilylene bridge between cyclopentadienyl rings. Synthesis, characterization and reactivity towards ethylene

SYSNO ASEP	0345810
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Dinuclear titanium complexes with methylphenylsilylene bridge between cyclopentadienyl rings. Synthesis, characterization and reactivity towards ethylene
Tvůrce(i)	Horáček, Michal (UFCH-W)_{RID, ORCID} Gyepes, R. (CZ) Merna, J. (CZ) Kubišta, Jiří (UFCH-W)_{RID, ORCID} Mach, Karel (UFCH-W)_{ORCID, RID} Pinkas, Jiří (UFCH-W)_{RID, ORCID}
Zdroj.dok.	Journal of Organometallic Chemistry. - : Elsevier - ISSN 0022-328X Roč. 695, č. 9 (2010), s. 1425-1433
Poč.str.	9 s.
Jazyk dok.	eng - angličtina
Země vyd.	CH - Švýcarsko
Klíč. slova	ansa-titanocene ; cyclopentadienyl ; dinuclear complexes
Vědní obor RIV	CF - Fyzikální chemie a teoretická chemie
CEP	KJB400400602 GA AV ČR - Akademie věd
	FT-TA3/078 GA MPO - Ministerstvo průmyslu a obchodu
CEZ	AV0Z40400503 - UFCH-W (2005-2011)
UT WOS	000276262600024
DOI	10.1016/j.jorganchem.2010.01.037
Anotace	The new ansa-titanocene dichloride [{(SiMePh)(eta(5)-C5H4)(2)}TiCl2] (1) was prepared by one pot reaction, whereas synthesis of its methylated analogue [{(SiMePh)(eta(5)-C5Me4)(2)} TiCl2] (3) was performed in two steps with isolation of corresponding silane intermediate SiMePh(HC5Me4)(2) (2). The reaction of 1 and 3 with TiCl4 afforded the dinuclear complexes [(SiMePh){(eta(5)-C5R4)TiCl3}(2)] (R= H (4) and R = Me (5)). The catalysts formed from 4 and 5 after their activation with excess MAO exhibited a modest activity in ethylene polymerization. The polymer products consisted of high molar mass linear polyethylenes with a broad molar mass distribution. The presence of three paramagnetic titanium species in the mixture 4/MAO was revealed by EPR spectroscopy. All new prepared compounds 1-5 were characterized by multinuclear NMR, EI-MS, IR, and solid-state structures of 1, 3 and 5 were determined by X-ray single crystal diffraction.
Pracoviště	Ústav fyzikální chemie J.Heyrovského
Kontakt	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Rok sběru	2011

Počet záznamů: 1