Abstract
The e.s.r. spectra of some pivalophenone and benzophenone ketyl radicals complexed with the Cr(CO)3 group have been obtained and compared with those of the uncomplexed compounds. The strong decrease of the hyperfine coupling constants of the complexed ring protons is explained in terms of substantial modification of the σ- rather than the π-electron density introduced by the inorganic system. For benzophenone ketyls a model is suggested in which the complexed ring is twisted out of the plane of the carbonyl and the uncomplexed ring. The variation of the coupling constants of the uncomplexed phenyl is explained in terms of the strong electron-withdrawing effect of the Cr(CO)3 group.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More 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.