Construction of Two-Dimensional Chiral Networks through Atomic Bromine on Surfaces,The Journal of Physical Chemistry Letters

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Construction of Two-Dimensional Chiral Networks through Atomic Bromine on Surfaces
The Journal of Physical Chemistry Letters ( IF 4.8 ) Pub Date : 2016-12-29 00:00:00 , DOI: 10.1021/acs.jpclett.6b02680
Jianchen Lu ₁ , De-Liang Bao ₁ , Huanli Dong ₂ , Kai Qian ₁ , Shuai Zhang ₁ , Jie Liu ₂ , Yanfang Zhang ₁ , Xiao Lin ₁ , Shi-Xuan Du ₁ , Wenping Hu ₂ , Hong-Jun Gao ₁

Affiliation

Using atomic bromine and 2,6-diphenylanthracene (DPA), we successfully constructed and characterized the large-area 2D chiral networks on Ag(111) and Cu(111) surfaces by combining molecular beam epitaxy with scanning tunneling microscopy. The Br atoms distribute themselves periodically in the network with the maximum number of −C–H···Br hydrogen bonds. Density functional theory calculations demonstrate that the hydrogen bonds contribute to the stability of the Br-organic networks. In addition, by controlling the ratio of bromine atoms to DPA molecules, different patterns of Br-organic networks were obtained on Ag(111) surfaces. Further experiments with 2,6-di(4-cyclohexylphenyl)anthracene on Ag(111) produced analogous atomic bromine guided 2D chiral networks.

中文翻译：

通过表面上的原子溴构建二维手性网络

使用原子溴和2,6-二苯基蒽（DPA），我们通过结合分子束外延和扫描隧道显微镜，成功地构建和表征了Ag（111）和Cu（111）表面上的大面积二维手性网络。Br原子以最大数量的-C–H···Br氢键周期性地分布在网络中。密度泛函理论计算表明，氢键有助于Br-有机网络的稳定性。此外，通过控制溴原子与DPA分子的比例，可以在Ag（111）表面获得不同的Br-有机网络图案。在Ag（111）上用2,6-二（4-环己基苯基）蒽进行进一步的实验产生了类似的原子溴引导的2D手性网络。

更新日期：2016-12-29

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