Abstract
Spin-exchange rate constants have been measured from the concentration dependence of the e.s.r. linewidths of two nitroxide radicals, TANONE (4-oxo-2,2,6,6-tetramethylpiperidino-oxy) and M-DOXYL [2-hexyl-2-(10′-methoxycarbonyldecyl)-4,4-dimethyloxazolidinyl-3-oxyl], in the isotropic and nematic phases of MBBA. Strong exchange is observed for TANONE in both phases and for M-DOXYL in the isotropic phase but the latter radical exhibits weak exchange in the nematic phase. A qualitative discussion of the nature of the radical–radical encounters affords an explanation of the observations.
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, Faraday 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.
