Photochemistry and electron-transfer mechanism of transition metal oxalato complexes excited in the charge transfer band. Academic Article

abstract

• The photoredox reaction of trisoxalato cobaltate (III) has been studied by means of ultrafast extended x-ray absorption fine structure and optical transient spectroscopy after excitation in the charge-transfer band with 267-nm femtosecond pulses. The Co-O transient bond length changes and the optical spectra and kinetics have been measured and compared with those of ferrioxalate. Data presented here strongly suggest that both of these metal oxalato complexes operate under similar photoredox reaction mechanisms where the primary reaction involves the dissociation of a metal-oxygen bond. These results also indicate that excitation in the charge-transfer band is not a sufficient condition for the intramolecular electron transfer to be the dominant photochemistry reaction mechanism.

authors

• Rentzepis, Peter

published proceedings

• Proc Natl Acad Sci U S A

author list (cited authors)

• Chen, J., Zhang, H., Tomov, I. V., Ding, X., & Rentzepis, P. M.

citation count

• 13

complete list of authors

• Chen, Jie||Zhang, Hua||Tomov, Ivan V||Ding, Xunliang||Rentzepis, Peter M

publication date

• October 2008

publisher

• Proceedings of the National Academy of Sciences  Publisher

published in

• Proceedings of the National Academy of Sciences of the United States of America  Journal

keywords

• Electrons
• Kinetics
• Organometallic Compounds
• Oxalates
• Photochemistry
• Transition Elements

PubMed Central ID

• 18832175

Digital Object Identifier (DOI)

• 10.1073/pnas.0806990105

start page

• 15235

end page

• 15240

volume

• 105

issue

• 40

URL

• http%3A%2F%2Fdx.doi.org%2F10.1073%2Fpnas.0806990105