Ultrafast measurements of the dynamics of solvation in polar and non-dipolar solvents

J. Gardecki, M. L. Horng, A. Papazyan, Mark Maroncelli

Research output: Contribution to journalArticlepeer-review

43 Scopus citations


The dynamics of solvation of the probe solute coumarin 153 has been measured with ∼ 100 fs time resolution using the fluorescence upconversion technique. A wide variety of solvents, including polar aprotic solvents, hydrogen bonding solvents, and non-dipolar solvents have been examined. For all solvents of even moderate polarity (ε{lunate}0>5), the solvation dynamics observed follows the predictions simple models based on the solvent's bulk dielectric response. For a number of "non-dipolar" solvents such as dioxane and benzene, for which ε{lunate}10<5, we observe surprisingly large time-dependent shifts, which seem to reflect the solute interacting with the large quadrupole (and higher multipole) moments of the solvent molecules. These dynamics represent a solvation distinct from the dipolar solvation dynamics previously studied and they cannot be modeled in terms of any currently available theory.

Original languageEnglish (US)
Pages (from-to)49-57
Number of pages9
JournalJournal of Molecular Liquids
Issue numberC
StatePublished - Jan 1 1995

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Materials Chemistry


Dive into the research topics of 'Ultrafast measurements of the dynamics of solvation in polar and non-dipolar solvents'. Together they form a unique fingerprint.

Cite this