Organometallic Supramolecular Mixed-Valence Cobalt(I)/Cobalt(II) Aquo Complexes Stabilized with the Water-Soluble Phosphine Ligand p-TPPTP (p-triphenylphosphine triphosphonic acid)
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- 作者：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. Byingto
- 刊名：Organometallics
- 出版年：2007
- 出版时间：April 23, 2007
- 年：2007
- 卷：26
- 期：9
- 页码：2272 - 2276
- 全文大小：102K
- 年卷期：v.26,no.9(April 23, 2007)
- ISSN：1520-6041
文摘
Reaction of the water-soluble phosphine phosphonic acid p-TPPTP(H)6 (p-triphenylphosphinetriphosphonic acid) with Co2(CO)8 under biphasic conditions results in the formation of Co6(CO)3(p-TPPTP)2(H2O)24·24H2O (2) or Co4(CO)3(p-TPPTP)2(H2O)24·24H2O (3) depending on the pH of thesolution. 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 withtitanium tetraisopropoxide via a sol-gel method to give a titania-supported Co(I) olefin hydroformylationcatalyst, which was characterized using solid-state 31P NMR, IR, and XPS.