Post-metallocenes: New bis(pyrrolyl-2-aldiminato) titanium complexes for ethylene polymerization

Yoshida Y; Matsui S; Takagi Y; Mitani M; Nitabaru M; Nakano T; Tanaka H; Fujita T

Chemistry Letters, Vol.29, No.11, 1270-1271, 2000

Yoshida Y, Matsui S, Takagi Y, Mitani M, Nitabaru M, Nakano T, Tanaka H, Fujita T

Two new bis(pyrrolyl-2-aldiminato) titanium complexes were synthesized and their structures determined by X-ray analyses. These complexes displayed high ethylene polymerization activity using MAO or Ph3C+B-(C6F5)(4)/(Bu3Al)-Bu-i as a cocatalyst. One of the complexes exhibited very high ethylene polymerization activity (14100 kg-polymer . mol-Ti-1 . h(-1)) with very high molecular weight (M-v: 260.1 x 10(4)) using MAO as a cocatalyst.