A two-dimensional crystal formed by pentamers on Au(111).
A two-dimensional crystal formed by pentamers on Au(111).
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DOI：
10.1039/c9cc01658a
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发表时间：
2019-05
影响因子：
4.9
通讯作者：
C. Yuan;Na Xue;Xue Zhang;Yajie Zhang;Na Li;Q. Xue;Tianhao Wu;S. Hou;Yongfeng Wang
中科院分区：
文献类型：
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作者：
C. Yuan;Na Xue;Xue Zhang;Yajie Zhang;Na Li;Q. Xue;Tianhao Wu;S. Hou;Yongfeng Wang
利用超高真空低温扫描隧道显微镜研究了一种新型的二维晶体结构，该结构在Au（111）衬底上形成超分子五聚体。(2E，4 E）-3-甲基-5-（2，6，6-三甲基环己-1-烯基）戊-2，4-二烯酸分子通过五重OH-O氢键形成五聚体。在有序阵列中，五聚体通过货车德瓦尔斯相互作用彼此相互作用。系统研究了不同退火温度和衬底对五聚体图案形成的影响。
A new type of two-dimensional crystal comprising supramolecular pentamers on Au(111) is studied using an ultra-high vacuum low-temperature scanning tunnelling microscope. (2E,4E)-3-Methyl-5-(2,6,6-trimethylcyclohex-1-enyl)penta-2,4-dienoic acid molecules form pentamers through five-fold OH-O hydrogen bonds. In ordered arrays, pentamers interact with each other via van der Waals interactions. The impacts of different annealing temperatures and substrates on the formation of pentamer patterns are systemically investigated.