Rotational diffusion of fluorene in hydroxylic solvents

Yong Rok Kim, Robin M. Hochstrasser

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)


Rotational diffusion of fluorene was studied by means of fluorescence anisotropy measurements using a time-correlated single photon counting apparatus. The measured rotational relaxation times in various alcohol solvents were compared with hydrodynamic predictions for prolate spheroidal and asymmetric ellipsoidal shapes in the "stick" and "slip" limits. The rotational dynamics of this molecular system was not predicted by slip or stick hydrodynamics assuming the friction which is proportional to the solvents' viscosities. Some factors that might be responsible for this phenomenon are discussed.

Original languageEnglish
Pages (from-to)9595-9597
Number of pages3
JournalJournal of physical chemistry
Issue number24
Publication statusPublished - 1992

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physical and Theoretical Chemistry


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