946599-70-8Relevant articles and documents
1-Methylimidazol-2-yl-functionalized cyclopentadienyl titanium and zirconium complexes. Crystal structure of [η 5:η1- C5H4CPh2CH2-(1-MeC3H 2N2)]TiCl3
Krut'ko,Borzov,Liao, Long Yu,Nie, Wan Li,Churakov,Howard,Lemenovskii
, p. 1574 - 1580 (2006)
The new side-chain functionalized cyclopentadienyl ligand LiC 5H4CPh2CH2R (R is 1-methylimidazol-2-yl) as lithium salt 2, the trimethylsilyl derivative Me 3SiC5H4CPh2CH2R (3), and the ligand in the CH form (4) were prepared starting from 6,6-diphenylfulvene and 1,2-dimethylimidazole lithiated at the 2-Me group (1) and then characterized. The half-sandwich complexes (η5:η 1-C5H4CPh2CH2R)TiCl 3 (5) and (η5:η 1-C5H 4CPh2CH2R)ZrCl3 (6) were synthesized. The molecular structure of complex 5 was established by X-ray diffraction. Complexes 5 and 6 exhibit dynamic behavior in solution associated with degenerate interconversion of the pseudo-six-membered metallacycle. For titanium complex 5 in a solvating solvent, a dynamic process due to intramolecular dissociation-coordination of the imidazole fragment was observed.