Matches in SemOpenAlex for { <https://semopenalex.org/work/W1974990350> ?p ?o ?g. }
- W1974990350 endingPage "1515" @default.
- W1974990350 startingPage "1509" @default.
- W1974990350 abstract "Mixed bent sandwich titanium (IV) complexes containing the donor-substituted [2-(diisopropylamino)ethyl]cyclopentadienyl (C5H4CH2CH2NiPr2 CpN) ligand are described. The highly moisture-sensitive metallocene dichloride (C5H4CH2CH2NNiPr2)(C5H4SiMe3)TiCl2 (1) was synthesized by reaction of CpNLi with CpSTiCl3 (CpS C5H4SiMe3). Complex 1 reacts with one equivalent of HCl with protonation of the amino group to give the air- and water-stable metallocene dichloride-hydrochloride [(C5H4CH2CH2-N(H)iPr2)(C5H4SiMe3)TiCl2]+Cl− (2). The structure of 2 was determined by a single-crystal X-ray diffraction study. Compounds 1 and 2 are precursors for ethylene polymerization catalysts. The reaction of 2 with one equivalent of Na+B[3,5-(CF3)2C6H3]4− afforded the borate [(C5H4CH2CH2N(H)iPr2)-(C5H4SiMe3)TiCl2]+B[3,5-(CF3)2C6H3]4− (3). The dimethyl compounds (C5H4CH2CH2NiPr2)(C5H4SiMe3)Time2 (4) was obtained by reaction of 1 with two equivalents of methyllithium. The diphenoxy complex (C5H4CH2CH2-NiPr2)(C5H4SiMe3)Ti(OPh)2 (5) was prepared analogously with a stoichiometric amount of lithium phenoxide. Compounds 4 and 5 show remarkable activity in the catalytic dehydrocoupling of phenylsilane." @default.
- W1974990350 created "2016-06-24" @default.
- W1974990350 creator A5009050687 @default.
- W1974990350 creator A5029807989 @default.
- W1974990350 creator A5031501173 @default.
- W1974990350 creator A5051934849 @default.
- W1974990350 date "1996-12-01" @default.
- W1974990350 modified "2023-10-10" @default.
- W1974990350 title "Mixed Bent Sandwich Titanium Complexes with the [2‐(Diisopropylamino)ethyl]cyclopentadienyl Ligand — Catalysts for the Polymerization of Ethylene and the Dehydrocoupling of Phenylsilane" @default.
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