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Competing Pathways in the Reaction of Bis(pentafluorophenyl)borane with Bis(η 5 ‐cyclopentadienyl)dimethylzirconium: Methane Elimination versus Methyl–Hydride Exchange and an Example of Pentacoordinate Carbon
Author(s) -
von H. Spence Rupert E.,
Parks Daniel J.,
Piers Warren E.,
MacDonald MaryAnne,
Zaworotko Michael J.,
Rettig Steven J.
Publication year - 1995
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199512301
Subject(s) - borane , chemistry , hydride , ethylene , methane , electrophile , catalysis , olefin fiber , medicinal chemistry , cyclopentadienyl complex , carbon fibers , carbon atom , polymerization , photochemistry , polymer chemistry , organic chemistry , materials science , ring (chemistry) , hydrogen , polymer , composite material , composite number
The structural isomer of a potentially very active Ziegler–Natta olefin polymerization catalyst 1 , is one of the final products in the reaction of [Cp 2 ZrMe 2 ] with the highly electrophilic borane HB(C 6 F 5 ) 2 . The most unusual structural feature of 1 is a pentacoordinate carbon atom. Interestingly, 1 is completely unreactive towards ethylene under ambient conditions.