FIELD: chemical industry. SUBSTANCE: described is organometallic compound of general formula I: (A-Cp)MXLq/Bar4 wherein M is Ti, Zr of Hf; A-Cp- is (Cp)(C*
p
) wherein Cp and C*
p
are the same or different substituted or unsubstituted cyclopentadienyl radicals; X is alkyl, aryl, aralkyl, trimethylsilyl alkyl; L is tertiary amine; Ar is substituted or unsubstituted phenyl. Said compound is useful for polymerization of olefins, diolefins and/or monomers with acetylene unsaturation. EFFECT: improved properties of the title compound. 3 cl, 46 ex
