Abstract
Metallacarboxylic acids (metal hydroxycarbonyls) are important intermediates in various transition metal-mediated reactions of CO and water, including the oxidation of CO by metal ions in aqueous solution, the homogeneously catalysed water-gas shift reaction and the formation of metal hydrides. The chemistry of the limited number of isolated metalla-carboxylic acids is surveyed and the first structural determination on such a compound, trans-Pt(CO 2H)(C 6H 5)(PEt 3) 2, is mentioned. Metallacarboxylic acids are amphoteric, but this behaviour is strongly dependent on the central metal atom and on the nature of the other ligands present. Although β-elimination to give a metal hydride and CO 2 is the usual mode of decomposition, this behaviour too is strongly metal- and ligand-dependent, and in the case of trans-Pt(CO 2H)(C 6H 5)(PEt 3) 2 an alternative route has been identified, in which CO and H 2O are lost and a dinuclear complex containing bridging CO 2 is formed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
