Abstract
Temperature dependent rotational diffusion of three medium sized dipolar laser dyes viz., Fluorescein 27 (F27), Fluorescein Na (FNa) and Sulforhodamine B (SRB) has been studied in glycerol using both steady-state and time-resolved fluorescence depolarization techniques. The rotational reorientation times of these probes are observed to vary linearly as a function of viscosity over the range of temperature studied. The results have been discussed and analyzed in the light of Stokes–Einstein–Debye (SED) hydrodynamic theory. The reorientation times of the probes follow a trend that is well within hydrodynamic slip and stick limits. Finally, the applicability of quasihydrodynamic models of Geirer–Wirtz (GW) and Dote–Kivelson–Schwartz (DKS) is discussed with a view to understand the nature of solute–solvent interactions.
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.
