Structural and electronic properties of hexa-adamantyl-hexa-phenylbenzene molecules studied by low temperature scanning tunneling microscopy
Structural and electronic properties of hexa-adamantyl-hexa-phenylbenzene molecules studied by low temperature scanning tunneling microscopy
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DOI：
10.1016/j.susc.2011.11.004
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发表时间：
2012-02-01
期刊：
影响因子：
1.9
通讯作者：
Coudret, Christophe
中科院分区：
文献类型：
--
作者：
Coratger, Roland;Calmettes, Bastien;Coudret, Christophe
用低温扫描隧道显微镜（STM）、吸附和图像计算研究了吸附在Ag（111）表面的六苯基苯核和六个金刚烷基组成的大分子（Ad（6）HPB）的电子和结构性质.在大的20个结构域上，分子组织显示两个晶格。在其中之一中，由于分子在包装过程中的相对柔性，分子被轻微嵌套。这些化合物还表现出对比度变化，在自组装域以及在单分子观察中使用的偏置电压。这是由于Ad（6）HPB的特殊电子性质和外围基团的作用。(C)2011爱思唯尔有限公司版权所有。
The electronic and structural properties of large molecules composed of a central hexa-phenylbenzene core surrounded by six adamantyl groups (Ad(6)HPB) adsorbed on Ag(111) have been investigated using low temperature scanning tunneling microscopy (STM), adsorption and image calculations. On large 20 domains, the molecular organization displays two lattices. In one of them, molecules are slightly nested as a result of their relative flexibility during packing. These compounds also exhibit contrast variations in terms of used bias voltage in the self-assembled domains as well as in single molecule observations. This is attributed to the peculiar electronic properties of Ad(6)HPB and to the role of peripheral groups. (C) 2011 Elsevier B.V. All rights reserved.