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Surface-mediated ordering of pristine Salen molecules on coinage metals
Inorganic Chemistry Frontiers ( IF 6.1 ) Pub Date : 2020-11-13 , DOI: 10.1039/d0qi00874e
Dan Liu 1, 2, 3, 4 , Bin Di 1, 2, 3, 4 , Zhantao Peng 1, 2, 3, 4 , Cen Yin 1, 2, 3, 4 , Hao Zhu 1, 2, 3, 4 , Xiaojie Wen 1, 2, 3, 4 , Qiwei Chen 1, 2, 3, 4 , Junfa Zhu 4, 5, 6, 7 , Kai Wu 1, 2, 3, 4
Affiliation  

The adsorption and assembly of pristine Salen molecules have been investigated by low-temperature scanning tunneling microscopy (STM) on Au(111), Ag(111) and Cu(111). High-resolution STM imaging reveals that the Salen molecules form three types of conformational isomers and several self-assembled unit structures on Au(111) and Ag(111). However, the morphology, proportional distribution and self-assembled structure of Salen on Cu(111) are different from those on Au(111) and Ag(111) because the Cu(111) substrate invokes a relatively stronger molecule-substrate interaction. This study demonstrates that the conformational changes of the pristine Salen molecule can be mediated by the underlying substrate lattice structure, leading to subsequent formation of self-assembled structures on the surface.

中文翻译:

铸币上原始Salen分子的表面介导有序

已通过低温扫描隧道显微镜(STM)在Au(111),Ag(111)和Cu(111)上研究了原始Salen分子的吸附和组装。高分辨率STM成像显示,Salen分子在Au(111)和Ag(111)上形成三种类型的构象异构体和几个自组装的单元结构。但是,Salen在Cu(111)上的形态,比例分布和自组装结构与Au(111)和Ag(111)上的不同,因为Cu(111)底物引起了相对较强的分子-底物相互作用。这项研究表明原始Salen分子的构象变化可以由下面的底物晶格结构介导,导致随后在表面上形成自组装结构。
更新日期:2020-12-17
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