Organometallic supramolecular mixed-valence cobalt(I)/cobalt(II) aquo complexes stabilized with the water-soluble phosphine ligand p-TPPTP (p-triphenylphosphine triphosphonic acid)

Terence L. Schull, Leila Henley, Jeffrey R. Deschamps, Ray J. Butcher, Dermot P. Maher, Christopher A. Klug, Karen Swider-Lyons, Walter J. Dressick, Bruno Bujoli, Andrew E. Greenwood, Laura K.Bvington Congiardo, D. Andrew Knight

Research output: Contribution to journalArticlepeer-review

Abstract

Reaction of the water-soluble phosphine phosphonic acid p-TPPTP(H)s (p-triphenylphosphine triphosphonic acid) with Co2(CO)8 under biphasic conditions results in the formation of Co6(CO) 3(p-TPPTP)2(H2O)24·24H 2O (2) or Co4(CO)3(p-TPPTP)2(H 2O)24·24H2O (3) depending on the pH of the solution. These supramolecular organometallic Co(I)/Co(II) complexes contain either six (2) or four (3) crystallographically distinct cobalt ions. The cation [Co(CO)3(p-TPPTP)2]+ from 2 was reacted with titanium tetraisopropoxide via a sol-gel method to give a titania-supported Co(I) olefin hydroformylation catalyst, which was characterized using solid-state 31P NMR, IR, and XPS.

Original languageEnglish (US)
Pages (from-to)2272-2276
Number of pages5
JournalOrganometallics
Volume26
Issue number9
DOIs
StatePublished - Apr 23 2007
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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