Femtosecond characterization of vibrational optical activity of chiral molecules

Hanju Rhee, Young-Gun June, Jang-Soo Lee, Kyung-Koo Lee, Jeong-Hyon Ha, Zee Hwan Kim, Seung-Joon Jeon and Minhaeng Cho ()
Additional contact information
Hanju Rhee: Department of Chemistry,
Young-Gun June: Department of Chemistry,
Jang-Soo Lee: Department of Chemistry,
Kyung-Koo Lee: Department of Chemistry,
Jeong-Hyon Ha: Multidimensional Spectroscopy Laboratory, Korea Basic Science Institute
Zee Hwan Kim: Department of Chemistry,
Seung-Joon Jeon: Department of Chemistry,
Minhaeng Cho: Department of Chemistry,

Nature, 2009, vol. 458, issue 7236, 310-313

Abstract: Chiral molecules, the movie Chiral molecules interact differently with left and right circularly polarized light, and the resultant optical activity has long been used to learn about molecular structures. The development of circular dichroism spectroscopy that can determine optical activity in a time-resolved manner raises the exciting prospect of the direct mapping of structural changes of important chemical or biological processes involving chiral molecules. Rhee et al. show that despite the difficulties posed by notoriously weak signals and large background contributions, optical activity in the infrared can be detected with femtosecond time-resolution by heterodyned spectral interferometry. This means that 'molecular motion pictures' of fundamental processes from a chiral perspective could soon be a reality.

Date: 2009
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DOI: 10.1038/nature07846

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