New weakly coordinating counter anions for high activity polymerisation catalysts: [(C6F5)(3)B-CN-B(C6F5)(3)](-) and [Ni{CNB(C6F5)(3)}(4)](2-)

Authors
Lancaster, SJ Walker, DA Thornton-Pett, M Bochmann, M
Citation
Sj. Lancaster et al., New weakly coordinating counter anions for high activity polymerisation catalysts: [(C6F5)(3)B-CN-B(C6F5)(3)](-) and [Ni{CNB(C6F5)(3)}(4)](2-), CHEM COMMUN, (16), 1999, pp. 1533-1534
Citations number
26
Categorie Soggetti
Chemistry
Journal title
CHEMICAL COMMUNICATIONS
ISSN journal
13597345 → ACNP
Issue
16
Year of publication
1999
Pages
1533 - 1534
Database
ISI
SICI code
1359-7345(19990821):16<1533:NWCCAF>2.0.ZU;2-X
Abstract
The new borate [CPh3](+)[CN{B(C6F5)(3)}(2)](-) and the anionic isocyanobora te complex [Ni{CNB(C6F5)(3)}(4)](2-) are readily accessible in one-pot reac tions and act as a highly efficient activators for metallocene polymerisati on catalysts; turnover numbers of up to 53 000 s(-1) appear to be the highe st reported so far for ethene polymerisation catalysts.