STM investigation of flexible supramolecules: Benzylic amide [2] catenanes

被引:10
作者
Biscarini, F
Gebauer, W
Di Domenico, D
Zamboni, R
Pascual, JI
Leigh, DA
Murphy, A
Tetard, D
机构
[1] CNR, Ist Spettroscopia Mol, I-40129 Bologna, Italy
[2] Univ Autonoma Madrid, Dept Fis Mat Condensada, E-20849 Madrid, Spain
[3] UMIST, Dept Chem, Manchester M60 1QD, Lancs, England
关键词
catenanes; supramolecules; scanning tunneling microscopy; adsorption; solution processing;
D O I
10.1016/S0379-6779(98)00539-6
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Benzylic amide [2] catenane (CATI) deposited from a methanol solution onto highly oriented pyrolitic; graphite (HOPG) has been investigated by ambient scanning tunneling microscopy (STM). Submolecular features are resolved which suggest that the adsorption of CAT1 is driven by the electrostatic attraction of carbonyl groups and HOPG. Our evidence shows that CATI is mobile at RT on HOPG surface. A statistical analysis of the observed features reveals a bimodal distribution of the lateral size which correlates with the expected diameter of a single macrocycle and the catenane respectively.
引用
收藏
页码:1466 / 1467
页数:2
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