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Molecular structures of a series of substituted bis(η 5-cyclopentadienyl)titanium dihalides Cp R2 TiX 2 [X = F, Cl, Br and I; R = CHPh 2, CH(p-Tol) 2 and adamantyl]

Molecular structures of a series of substituted bis(η 5-cyclopentadienyl)titanium dihalides Cp R2 TiX 2 [X = F, Cl, Br and I; R = CHPh 2, CH(p-Tol) 2 and adamantyl]

Tim Oswald, Nicolai Lauterbach, Marc Schmidtmann, Rüdiger Beckhaus

Acta Crystallogr C Struct Chem. 2018 Apr 1;74(Pt 4):442-451.

PMID: 29620028

Abstract:

Metallocene dihalides and derivatives thereof are of great interest as precursors for catalysts in polymerization reactions, as antitumor agents and, due to their increased stability, as suitable starting materials in salt metathesis reactions and the generation of metallocene fragments. We report the synthesis and structural characterization of a series of eleven substituted bis(η5-cyclopentadienyl)titanium dihalides, namely bis[η5-1-(diphenylmethyl)cyclopentadienyl]difluoridotitanium(IV), [Ti(C18H15)2F2], bis{η5-1-[bis(4-methylphenyl)methyl]cyclopentadienyl}difluoridotitanium(IV), [Ti(C20H19)2F2], and bis{η5-1-[bis(adamantan-2-yl)methyl]cyclopentadienyl}difluoridotitanium(IV), [Ti(C15H19)2F2], together with the bromide and iodide analogues, and the chloride analogues of the diphenylmethyl and adamantyl complexes. These eleven complexes were prepared by the reaction of the corresponding bis(η5:η1-pentafulvene)titanium complexes with different hydrogen halides (Cl, Br and I). The titanocene fluorides become available via chloride-fluoride exchange reactions.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP7720834	Titanium(IV) iodide		7720-83-4	Price

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