Synthesis and X-ray Structure of the Novel Aluminum Complex [{η3-HB(3-Phpz)2(5-Phpz)}2Al][AlCl4]. Catalysis of CO2/Propylene Oxide to Propylene Carbonate by the AlCl4- Anion
Inorganic Chemistry1996Vol. 35(9), pp. 2682–2684
Citations Over TimeTop 23% of 1996 papers
Donald J. Darensbourg, Ernest L. Maynard, Matthew W. Holtcamp, Kevin K. Klausmeyer, Joseph H. Reibenspies
Abstract
The solid-state structure of [{η3-HB(3-Phpz)2(5-Phpz)}2Al][AlCl4] has been determined by X-ray crystallography. The complex results from the redistribution reaction of AlCl3 and K[HB(3-Phpz)3], where the sterically-demanding hydrotris(pyrazolyl)borate ligand had rearranged to relieve steric strain about the small aluminum(III) cation. The [AlCl4]- anion is shown to be catalytically active for the production of propylene carbonate from propylene oxide and carbon dioxide.
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