Abstract
Abstract13C spin‐lattice relaxation times (T1) and nuclear Overhauser enhancements (NOEs) were measured for individual carbons in flexible‐chain molecules consisting of a hydrocarbon chain attached to fluorene moiety at position 3 through an ester bond. Quantitative treatment of the relaxation data of the ring carbons revealed an anisotropic motion for all the molecules studied. The relaxation times of the chain carbons were analysed in terms of a correlation function describing multiple internal rotations about successive CC bonds. The results (rotational diffusion constants) were used to discuss features of the chain mobility as a function of chain length and chain unsaturation. The assumptions involved in the quantitative treatment were examined and the values were compared with those of n‐alkanes and lipid bilayers.
Sign-in/Register to access full text options 
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 callDisclaimer: 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.
