Organometallic fluorenyl compounds and use thereof in an alpha-olefin polymerization process

A metallocene of the formula R"(FlR.sub.n)(CpR.sub.m)MeQ.sub.k, wherein Fl is a fluorenyl radical, Cp is a cyclopentadienyl, indenyl, tetrahydroindenyl, or fluorenyl radical, each R of Cp is the same or different and is an organo radical having 1 to 20 carbon atoms, R" is a C.sub.1 to C.sub.20 hydrocarbyl structural bridge linking (FlR.sub.n) and (CpR.sub.m), Me is a metal selected from the group consisting of IVB, VB, and VIB metals of the Periodic Table, each Q is the same or different and is selected from the group consisting of hydrocarbyl or hydrocarbyloxy radicals having 1 to 20 carbon atoms and halogen, k is a number sufficient to fill out the remaining valences of Me, m is a number in the range of 0 to 7, n is a number in the range of 2 to 7 and (FlR.sub.n) is symmetrically substituted with identical substituents, said substituents being selected from the group consisting of methyl vinyl and hydrocarbyl radicals having up to 20 carbon atoms, said hydrocarbyl radicals being selected from a group consisting of cycloalkyl, cycloalkenyl, aralkyls and aryl radicals.