Six-coordinate aluminium cations: Characterization, catalysis, and theory

Miguel Angel Munoz-Hernandez, Michael L. McKee, Timothy S. Keizer, Burl C. Yearwood, David A. Atwood

Research output: Contribution to journalArticlepeer-review

51 Scopus citations


The new thf supported cations, [Salen(tBu)Al(thf)2]+ (2), [Salpen(tBu)Al(thf)2]+ (3), [Salben(tBu)Al(thf)2]+ (4) [Salophen(tBu)Al(thf)2]+ (5) and [Salomphen(tBu)Al(thf)2]+ (6), with BPh4 - as the counter anion, have been prepared from salt elimination reactions with the respective Salen(tBu)AlCl reagent, including one that is new, Salben(tBu)AlCl (1). The cations were observed to polymerize propylene oxide. Based upon the results of experimental and theoretical work the mechanism appears to be one in which a carbocation is the propagating species although the PDI values are remarkably low, ≈1.2 in some cases. All of the potential catalysts were characterized spectroscopically and, in the case of 3, by X-ray crystallography.

Original languageEnglish
Pages (from-to)410-414
Number of pages5
JournalJournal of the Chemical Society, Dalton Transactions
StatePublished - 2002

ASJC Scopus subject areas

  • Chemistry (all)


Dive into the research topics of 'Six-coordinate aluminium cations: Characterization, catalysis, and theory'. Together they form a unique fingerprint.

Cite this