Multicomponent Assembly of Supramolecular Coordination Polygons on a Au(111) Surface

Multicomponent Assembly of Supramolecular Coordination Polygons on a Au(111) Surface
复制标题

Au(111) 表面超分子配位多边形的多组分组装

DOI:
10.1021/jp408504b
复制
发表时间:
2013-10
影响因子:
3.7
通讯作者:
Nian Lin
Nian Lin
中科院分区:
化学3区
文献类型:
--
作者:
Tao Lin;Xue Song Shang;Pei Nian Liu;Nian Lin

文献摘要

参考文献

相似文献

利用扫描隧道显微镜和动力学Monte Carlo模拟研究了一系列多组分环状超分子多边形在Au(111)表面的自组装。我们的研究结果表明,虽然封闭的多边形或笼在适当的温度和浓度下有效地自组装在三维空间中,链结构主要形成和产率的环状多边形结构是非常低的,在两个维度的温度和浓度无关。环链平衡的这种实质性转变可以归因于动力学和热力学控制之间的微妙竞争。模拟表明,在表面上,其中的分子的平移和旋转自由度受到限制,分子内键翻转受阻,低能量的反应途径,是必不可少的环状结构的形成被阻止。此外,显微镜图像表明,表面缺陷提供动力学陷阱,进一步降低产率…
We have studied the self-assembly of a series of multicomponent cyclic supramolecular polygons on a Au(111) surface using scanning tunneling microscopy and kinetic Monte Carlo simulations. Our results indicate that while closed polygons or cages efficiently self-assemble in three dimensions at appropriate temperatures and concentrations, chain structures are formed predominantly and the yield of cyclic polygon structures is very low in two dimensions independent of temperature and concentration. This substantial shift in the ring–chain equilibrium can be attributed to subtle competition between kinetic and thermodynamic controls. Simulations suggest that on a surface, where the translational and rotational freedom of the molecules are restricted and intramolecular bond flipping is hindered, the low-energy reaction pathways that are essential for the formation of cyclic structures are blocked. In addition, microscopy images suggest that surface defects provide kinetic traps that further reduce the yield of...
DOI: 10.1021/ja00090a051
发表时间: 1994-06
影响因子: 15
作者:
P. Stang;Danh H. Cao
通讯作者: P. Stang;Danh H. Cao
DOI: 10.1063/1.1747547
发表时间: 1950-01-01
影响因子: 4.4
作者:
JACOBSON, H;STOCKMAYER, WH
通讯作者: STOCKMAYER, WH
DOI: 10.1039/b612566b
发表时间: 2007-03
期刊: Soft matter
影响因子: 3.4
作者:
Andrew J. Wilson
通讯作者: Andrew J. Wilson
DOI: 10.1038/nature10720
发表时间: 2012-01-26
期刊: NATURE
影响因子: 64.8
作者:
Korevaar, Peter A.;George, Subi J.;Meijer, E. W.
通讯作者: Meijer, E. W.
DOI: 10.1021/jp206675u
发表时间: 2011-12-15
影响因子: 3.7
作者:
Buchner, Florian;Xiao, Jie;Marbach, Hubertus
通讯作者: Marbach, Hubertus