Abstract
The alternating linewidth effects of the e.s.r. spectra of 1,3-dinitrobenzene (3-BDN) and benzene-1,3-dicarbaldehyde (3-BDC) radical anions are interpreted in terms of an intramolecular electron-exchange process with a rate constant of 109 s–1. For 1,3-dicyanobenzene the absence of linewidth effects suggests a faster electron-exchange process (> 1010 s–1). Marcus theory and the intersecting-state model (ISM) are employed to study these electron-transfer processes. Whereas both theories predict the same rate for 3-BDN and 3-BDC, Marcus theory estimates a very low rate (ca. 20 s–1) for dicyanobenzene radical anions whereas ISM estimates a very fast rate (> 1010 s–1) which appears to be in agreement with experiment. The reasons for the difference in the two approaches are discussed.
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 callMore From: Journal of the Chemical Society, Perkin Transactions 2
Disclaimer: 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.
