| http://www.w3.org/ns/prov#value | - The metallocenes can be represented by the general formula (C5 R'm)p R"s (C5 R'm)MeQ3-p or R"s (C5 R'm)2 MeQ', wherein (C5 R'm) is a cyclopentadienyl or substituted cyclopentadienyl, each R', which can be the same or different, is hydrogen or a hydrocarbyl radical such as alkyl, alkenyl, aryl, alkylaryl, or arylalkyl radical having from 1 to 20 carbon atoms or two carbon atoms of the cyclopentadie
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