通过外差检测和频产生检测香芹酮气/液界面处的手性识别。
Chirality discrimination at the carvone air/liquid interfaces detected by heterodyne-detected sum frequency generation.
作者信息
Wang Yang, Du Jianbin, Ma Xiangyun, Wang Huijie, Chou Keng C, Li Qifeng
机构信息
School of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin, China.
Department of Chemistry, University of British Columbia, Vancouver, BC, V6T 1Z1, Canada.
出版信息
Heliyon. 2019 Dec 17;5(12):e03061. doi: 10.1016/j.heliyon.2019.e03061. eCollection 2019 Dec.
The chiral signal of the carvone air/liquid interface is probed by heterodyne-detected sum frequency generation (HD-SFG) without the electronic resonance. The chiral SFG spectra exhibit two distinguishable spectral signatures. Four chiral vibrational peaks of the R- and S-carvone molecules are with opposite signs, which can directly determine the surface molecular chirality. Two achiral vibrational peaks are also observed with the same sign. The different spectral signatures can provide a detailed chirality characterization at the molecular interface.
通过外差检测和频产生（HD-SFG）在无电子共振的情况下探测香芹酮气/液界面的手性信号。手性SFG光谱呈现出两个可区分的光谱特征。R-和S-香芹酮分子的四个手性振动峰具有相反的符号，这可以直接确定表面分子的手性。还观察到两个具有相同符号的非手性振动峰。不同的光谱特征可以在分子界面提供详细的手性表征。
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