Trends in Structure and Ethylene Polymerization Reactivity of Transition-Metal Permethylindenyl-phenoxy (PHENI*) Complexes.

ABSTRACT: A family of ansa-permethylindenyl-phenoxy (PHENI*) transition-metal chloride complexes has been synthesized and characterized (1-7; {(η⁵-C₉Me₆)Me(R″)Si(2-R-4-R'-C₆H₂O)}MCl₂; R,R' = Me, ^tBu, Cumyl (CMe₂Ph); R″ = Me, ⁿPr, Ph; M = Ti, Zr, Hf). The ancillary chloride ligands could readily be exchanged with halides, alkyls, alkoxides, aryloxides, or amides to form PHENI* complexes [L]TiX₂ (8-17; X = Br, I, Me, CH₂SiMe₃, CH₂Ph, NMe₂, OEt, ODipp). The solid-state crystal structures of these PHENI* complexes indicate that one of two conformations may be preferred, parametrized by a characteristic torsion angle (

SUBMITTER: Collins Rice CG 

PROVIDER: S-EPMC10900520 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature