Chirality discrimination at the carvone air/liquid interfaces detected by heterodyne-detected sum frequency generation

被引：1
|
作者：
Wang, Yang [1 ]
Du, Jianbin [1 ]
Ma, Xiangyun [1 ]
Wang, Huijie [1 ]
Chou, Keng C. [2 ]
Li, Qifeng [1 ]
机构：
[1] Tianjin Univ, Sch Precis Instrument & Optoelect Engn, Tianjin, Peoples R China
[2] Univ British Columbia, Dept Chem, Vancouver, BC V6T 1Z1, Canada
来源：
HELIYON | 2019年 / 5卷 / 12期
关键词：
Analytical chemistry; Organic chemistry; Physical chemistry; Enantiomers; HD-SFG; Air/liquid interface; Intrinsic chirality; VIBRATIONAL SPECTROSCOPY; MOLECULAR CHIRALITY; LIQUIDS; PROBE;
D O I：
10.1016/j.heliyon.2019.e03061
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
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.
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页数：4
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