Mode-specific intermolecular vibrational energy transfer. II. Deuterated water and potassium selenocyanate mixture

The Journal of Chemical Physics
Hongtao BianJunrong Zheng

Abstract

Vibrational energy transfer from the first excited state (2635 cm(-1)) of the O-D stretch of deuterated water (D(2)O) to the 0-1 transition (2075 cm(-1)) of the CN stretch of potassium selenocyanate (KSeCN) in their 2.5:1 liquid mixture was observed with a multiple-mode two dimensional infrared spectroscopic technique. Despite the big energy mismatch (560 cm(-1)) between the two modes, the transfer is still very efficient with a time constant of 20 ps. The efficient energy transfer is probably because of the large excitation coupling between the two modes. The coupling is experimentally determined to be 176 cm(-1). An approximate analytical equation derived from the Landau-Teller formula is applied to calculate the energy transfer rate with all parameters experimentally determined. The calculation results are qualitatively consistent with the experimental data.

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Citations

Feb 7, 2012·Proceedings of the National Academy of Sciences of the United States of America·Zhiwei Lin, Igor V Rubtsov
Feb 12, 2014·The Journal of Chemical Physics·Ruiting Zhang, Wei Zhuang
Jun 21, 2012·The Journal of Chemical Physics·Joanna BorekPeter Hamm
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Mar 12, 2016·The Journal of Physical Chemistry. B·Chuanqi GeJunrong Zheng
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Mar 29, 2011·The Journal of Physical Chemistry. a·Hongtao BianJunrong Zheng
Aug 29, 2013·The Journal of Physical Chemistry. B·Hailong ChenJunrong Zheng
Dec 31, 2014·The Journal of Physical Chemistry. a·Hailong ChenJunrong Zheng
Sep 16, 2011·The Journal of Physical Chemistry. a·Hongtao BianJunrong Zheng
Mar 19, 2014·The Journal of Physical Chemistry. B·Kaijun YuanJunrong Zheng
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Jul 20, 2018·Journal of the American Chemical Society·Jun NishidaMichael D Fayer

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Methods Mentioned

BETA
infrared spectroscopy

Software Mentioned

GAUSSIAN

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