Room-temperature tracking of chiral recognition process at the single-molecule level

The molecular-level identification of a chiral recognition process of phthalocyanine （Pc） was studied on a Cu（100） surface by scanning tunneling microscopy （STM）. STM revealed that a chiral Pc molecule forms a series of metastable dimer configurations with other Pc molecules. Eventually, the Pc mole...

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Bibliographic Details
Published in:Nano research 2015-11, Vol.8 (11), p.3505-3511
Main Authors: Xu, Ruilin, Liu, Juan, Chen, Feng, Liu, Nianhua, Cai, Yingxiang, Liu, Xiaoqing, Song, Xin, Dong, Mingdong, Wang, Li
Format: Article
Language:English
Subjects:
Atomic/Molecular Structure and Spectra
Biomedicine
Biotechnology
Chemistry and Materials Science
Chirality
Condensed Matter Physics
Configurations
Copper
Cu（100）
Dimerization
Dimers
Materials Science
Nanostructure
Nanotechnology
Recognition
Research Article
Room temperature
Scanning tunneling microscopy
Short term memory
Surface chemistry
Tracking
二聚体
分子水平
房间
手性识别
扫描隧道显微镜
温度跟踪
铜表面
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Summary:The molecular-level identification of a chiral recognition process of phthalocyanine （Pc） was studied on a Cu（100） surface by scanning tunneling microscopy （STM）. STM revealed that a chiral Pc molecule forms a series of metastable dimer configurations with other Pc molecules. Eventually, the Pc molecule recognizes another Pc molecule with the same chirality to form a stable dimer configuration. Homochiral dimers were found on the Cu surface, demonstrating the chiral specificity of Pc dimerization. The mechanism for this chiral recognition process is identified, disclosing the critical role of the particular adsorption geometry of the chiral dimers on the Cu surface.
ISSN:1998-0124
1998-0000
DOI:10.1007/s12274-015-0850-7