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Chiral Recognition of Hexahelicene on a Surface via the Forming of Asymmetric Heterochiral Trimers
Zhang, Hong; Liu, Hong; Shen, Chengshuo; Gan, Fuwei; Su, Xuelei; Qiu, Huibin; Yang, Bo; Yu, Ping
2019-04-02
Source PublicationINTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
ISSN1422-0067
Volume20Issue:8
SubtypeArticle
AbstractChiral recognition among helical molecules is of essential importance in many chemical and biochemical processes. The complexity necessitates investigating manageable model systems for unveiling the fundamental principles of chiral recognition at the molecular level. Here, we reported chiral recognition in the self-assembly of enantiopure and racemic hexahelicene on a Au(111) surface. Combing scanning tunneling microscopy (STM) and atomic force microscopy (AFM) measurements, the asymmetric heterochiral trimers were observed as a new type of building block in racemic helicene self-assembly on Au(111). The intermolecular recognition of the heterochiral trimer was investigated upon manual separation so that the absolute configuration of each helicene molecule was unambiguously determined one by one, thus confirming that the trimer was 2+1 in handedness. These heterochiral trimers showed strong stability upon different coverages, which was also supported by theoretical calculations. Our results provide valuable insights for understanding the intermolecular recognition of helical molecules.
Keywordchiral recognition helicene assembly STM nc-AFM
DOI10.3390/ijms20082018
Language英语
WOS Research AreaBiochemistry & Molecular Biology ; Chemistry
PublisherMDPI
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Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27206
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Zhang, Hong,Liu, Hong,Shen, Chengshuo,et al. Chiral Recognition of Hexahelicene on a Surface via the Forming of Asymmetric Heterochiral Trimers[J]. INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,2019,20(8).
APA Zhang, Hong.,Liu, Hong.,Shen, Chengshuo.,Gan, Fuwei.,Su, Xuelei.,...&Yu, Ping.(2019).Chiral Recognition of Hexahelicene on a Surface via the Forming of Asymmetric Heterochiral Trimers.INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,20(8).
MLA Zhang, Hong,et al."Chiral Recognition of Hexahelicene on a Surface via the Forming of Asymmetric Heterochiral Trimers".INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES 20.8(2019).
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