Zirconium enolatoimine complexes in olefin polymerization
نویسندگان
چکیده
منابع مشابه
Zirconium enolatoimine complexes in olefin polymerization.
Zirconium complexes with enolatoimine ligands bearing an electron-withdrawing trifluoromethyl group on the alkoxy moiety [κ²-N,O-{2,6-R₂N=C(CH₃)C(H)=C(O)CF₃]₂ZrCl₂ (2a, R = H; 2b, R = F; 2c, R = CH₃; 2d, R = (i)Pr) were prepared. The isopropyl substituents hinder rotation in solution for 2d, and result in a trans-arrangement of the N-donors in the solid state. Catalyst activities are similar fo...
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Discrete ionic complexes {ONOSiMe2tBu}M(CH2Ph)((η6-Ph)CH2B(C6F5)3) (M = Ti, 2-Ti; Zr, 2-Zr) have been prepared from the parent neutral dibenzyl precursors and B(C6F5)3. Also, a neutral dichloro complex {ONOSiMe2tBu}ZrCl2(Me2NH) (3) was synthesized by the reaction of a proligand {ONOSiMe2tBu}H2 (1-H2) with (Me2N)2ZrCl2(DME). The compounds were characterized by NMR spectroscopy and X-ray crystall...
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Patterning functional materials is a central challenge across many fields of science. The ability to lithographically fabricate micro- and nanostructures has been one of the most impactful technological breakthroughs of the last century. In part due to the complexity of the chemical processes in photoresists, there is a limited variety of materials that can currently be patterned by photolithog...
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ژورنال
عنوان ژورنال: Dalton Transactions
سال: 2010
ISSN: 1477-9226,1477-9234
DOI: 10.1039/b916289e