Impact of heterocirculene molecular symmetry upon two-dimensional
文献类型：期刊论文
| 作者 | Xiao, WD ; Zhang, YY ; Tao, L ; Ait-Mansour, K ; Chernichenko, KY ; Nenajdenko, VG ; Ruffieux, P ; Du, SX ; Gao, HJ ; Fasel, R |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2014 |
| 卷号 | 4 |
| ISSN号 | 2045-2322 |
| 通讯作者 | Xiao, WD (reprint author), Empa Swiss Fed Labs Mat Sci & Technol, CH-8600 Dubendorf, Switzerland. |
| 中文摘要 | Despite the development of crystal engineering, it remains a great challenge to predict the crystal structure even for the simplest molecules, and a clear link between molecular and crystal symmetry is missing in general. Here we demonstrate that the two-dimensional (2D) crystallization of heterocirculenes on a Au(111) surface is greatly affected by the molecular symmetry. By means of ultrahigh vacuum scanning tunneling microscopy, we observe a variety of 2D crystalline structures in the coverage range from submonolayer to monolayer for D-8h-symmetric sulflower (C16S8), whereas D-4h-symmetric selenosulflower (C16S4Se4) forms square and rectangular lattices at submonolayer and monolayer coverages, respectively. No long-range ordered structure is observed for C-1h-symmetric selenosulflower (C16S5Se3) self-assembling at submonolayer coverage. Such different self-assembly behaviors for the heterocirculenes with reduced molecular symmetries derive from the tendency toward close packing and the molecular symmetry retention in 2D crystallization due to van der Waals interactions. |
| 资助信息 | European Commission; Swiss National Science Foundation; National Natural Science Foundation of China |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59711]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Xiao, WD,Zhang, YY,Tao, L,et al. Impact of heterocirculene molecular symmetry upon two-dimensional[J]. SCIENTIFIC REPORTS,2014,4. |
| APA | Xiao, WD.,Zhang, YY.,Tao, L.,Ait-Mansour, K.,Chernichenko, KY.,...&Fasel, R.(2014).Impact of heterocirculene molecular symmetry upon two-dimensional.SCIENTIFIC REPORTS,4. |
| MLA | Xiao, WD,et al."Impact of heterocirculene molecular symmetry upon two-dimensional".SCIENTIFIC REPORTS 4(2014). |
入库方式： OAI收割
来源：物理研究所
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