期刊
ANALYTICAL CHEMISTRY
卷 80, 期 18, 页码 6968-6973出版社
AMER CHEMICAL SOC
DOI: 10.1021/ac800818f
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资金
- Japan Science and Technology Agency (JST)
- Ministry of Education, Science and Culture, Japan
- The Japan Science Society
Chiral surfaces attract increasing interest due to their vital role in a variety of scientific fields, such as chiral separation and heterogeneous enantioselective catalysis. The most urgent issue in research on such two-dimensional chirality is a lack of methodologies that recognize molecular chirality on a surface. Here we show that the chiral molecular tips enable for the first time discrimination of enantiomers on a single-molecule basis. The chiral selectivity is attributed to favorable chemical interactions that the molecular tips form with only one of two enantiomers. The stereoselective observation reveals spatial distribution of the enantiomers on a surface at the molecular level. The chiral molecular tips open a way for control of organization of enantiomers toward the advanced functionality of these chiral surfaces through knowledge on pivotal roles of chirality on molecular assemblies as shown here.
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