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Inne
The synthesis of olefin polymerization precatalysts: [TiCl4(C4H7OCH2CO2CH3)] and [ (C4H7OCH2CO2Et)2Mg(μ-Cl)2TiCl4]· 2CH2Cl2. Crystal structures and properties.
Autorzy
Rok wydania
1994
Czasopismo
Journal of Organometallic Chemistry
Numer woluminu
481
Strony
57-62
DOI
10.1016/0022-328X(94)85008-9
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Direct reactions of TiCl4 or of a 1:1 mixture of TiCl4 and MgCl2 with chiral tetrahydrofurfuryl C4H7OCH2CO2CH3 and C4H7OCH2CO2Et esters, respectively, gave [TiCl4(C4H7OCH2CO2CH3)] (1) and [(C4H7OCH2CO2Et)2Mg(μ-Cl)2TiCl4] · 2CH2Cl2 (2) which are good precatalysts for ethylene polymerization. The crystal structures of 1 and 2 have been solved by X-ray methods. In 1 the titanium atom is octahedrally coordinated by four chlorine atoms and two oxygen atoms of the chelate tetrahydrofurfuryl acetate ligand. In the heterobimetallic complex 2, formed by slightly distorted edge-sharing octahedra, the titanium and magnesium atoms are separated by Ti ⋯ Mg of 3.725(16) Å and linked through two bridging Cl atoms.
Adres publiczny
https://doi.org/10.1016/0022-328X(94)85008-9
Strona internetowa wydawcy
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