| 摘要 |
This description addresses fluorinated amine compounds meeting the general formula R'iArF-ER2, where ArF is a fluoroaryl group, E is nitrogen or phosphorous, each R is independently a C1-C20 hydrocarbyl group; or the two Rs may connect to form an unsubstituted or substituted C2-C20 cycloaliphatic group, R' is a C1-C20 hydrocarbyl or halogenated hydrocarbyl, and i is 0, 1 or 2. These compounds may be protonated with strong Bronsted acids to form protonated amine compounds that are useful for the preparation of organometallic catalyst-cocatalyst compounds comprising noncoordinating or weakly coordinating anions. The resulting organometallic catalyst-cocatalyst complexes can be effectively used as olefin polymerization catalysts. High number-average molecular weight polymers at high rates of productivity were observed from the use of metallocene catalyst complexes prepared with [N-pentafluorophenyl pyrrolidinium][tetrakis(pentafluorophenyl)borate] of [N-pentafluorophenyl pyrrolidinium][chloride].
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