Sum-frequency vibrational spectroscopy on chiral liquids: A novel technique to probe molecular chirality
Sum-frequency vibrational spectroscopy on chiral liquids: A novel technique to probe molecular chirality
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DOI：
10.1103/physrevlett.85.4474
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发表时间：
2000-11-20
影响因子：
8.6
通讯作者：
Shen, YR
中科院分区：
文献类型：
--
作者：
Belkin, MA;Kulakov, TA;Shen, YR
首次在手性液体中观察到了和频振动光谱中的旋光性。非线性极化率的电偶极允许手性元素似乎比典型的允许非手性元素小3个数量级。这部分是因为观察到的手征性需要打破玻恩-奥本海默近似。
Optical activity in sum-frequency vibrational spectra has been observed for the first time in chiral liquids. The electric-dipole allowed chiral element of the nonlinear susceptibility appears to be 3 orders of magnitude smaller than typical allowed achiral elements. This is partly because the observed chirality requires a breakdown of the Born-Oppenheimer approximation.