Resonance heterodyne optical Kerr spectroscopy of solvation dynamics in water and D2O

B. Zolotov, A. Gan, B. D. Fainberg, D. Huppert

Research output: Contribution to journalArticlepeer-review

Abstract

We have used the technique of time resolved resonance heterodyne optical Kerr effect to measure the ultrafast solvation dynamics of rhodamine 800 (R800) and 3,3′-diethylthia-tricarbocyanine bromide (DTTCB) in water and D2O. We find a significant isotope effect in the picosecond range for R800 but we do not reveal it for DTTCB. We explain the R800 results by a specific solvation due to formation (breaking) of an intermolecular solute-solvent hydrogen bond. Another important part of the experimental data is a bimodal solvation correlation function with an ultrafast femtosecond component < 100 fs.

Original languageEnglish
Pages (from-to)418-426
Number of pages9
JournalChemical Physics Letters
Volume265
Issue number3-5
DOIs
StatePublished - 7 Feb 1997

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