C. Lorber et al., Synthesis and structure of group 4 and 5 metal complexes with an ancillarysterically demanding diamido ligand, ORGANOMETAL, 19(10), 2000, pp. 1963-1966
Reaction of tetrachlorides of group 4 and 5 transition metals with the chel
ating diamide [Me2C(CH2N(Li)((SiBuPh2)-Ph-t))(2)] (LLi2) leads to LMCl2 (M
= Ti, Zr, Hf V) complexes, which were characterized by X-ray diffraction. T
he reactivity of LMCl2 toward ethylene polymerization was tested with MAO a
s cocatalyst.