Thermal-Robust Phenoxyimine Titanium Catalysts Bearing Bulky Sidearms for High Temperature Ethylene Homo-/Co- Polymerizations.

ABSTRACT: A family of titanium complexes (Ti1-Ti7) with the general formula LTiCl_3, supported by tridentate phenoxyimine [O^-NO] ligands (L1-L7) bearing bulky sidearms, were synthesized by treating the corresponding ligands with stoichiometric amount of TiCl₄. All the ligands and complexes were well characterized by ¹H and ¹³C NMR spectroscopies, in which ortho- methoxyl groups on N-aryl moieties shifted to downfield, corroborating the successful coordination reaction. Structural optimization by DFT calculations revealed that one of the phenyl groups on dibenzhydryl moiety could form π-π stacking interaction with the salicylaldimine plane, because of which the obtained titanium complexes revealed good the

SUBMITTER: Wang X 

PROVIDER: S-EPMC11013879 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature