Abstract
The temperature dependence of the e.s.r. spectra of a series of sodium reduced thiones is reported. The thioketyls thiobenzophenone, p,p′-dimethoxythiobenzophenone, xanthene-9-thione, thioxanthene-9-thione, and their ketone analogues have been studied. Several show temperature-dependent sodium hyperfine structure near room temperature, but dissociate at lower temperatures to give spectra of thioketyl anions with no sodium coupling and markedly different g-values. Ring proton hyperfine splittings are found to be independent of the ion pairing process and independent of temperature. Models of ion pairing are discussed. Comparison is made to uhf–scf–mo calculations.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
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.