Sum-frequency vibrational spectroscopy on chiral liquids: A novel technique to probe molecular chirality

Authors
Belkin, MA Kulakov, TA Ernst, KH Yan, L Shen, YR
Citation
Ma. Belkin et al., Sum-frequency vibrational spectroscopy on chiral liquids: A novel technique to probe molecular chirality, PHYS REV L, 85(21), 2000, pp. 4474-4477
Citations number
17
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
85
Issue
21
Year of publication
2000
Pages
4474 - 4477
Database
ISI
SICI code
0031-9007(20001120)85:21<4474:SVSOCL>2.0.ZU;2-E
Abstract
Optical activity in sum-frequency vibrational spectra has been observed for the first time in chiral liquids. The electric-dipole allowed chiral eleme nt of the nonlinear susceptibility appears to be 3 orders of magnitude smal ler than typical allowed achiral elements. This is partly because the obser ved chirality requires a breakdown of the Born-Oppenheimer approximation.