In Situ STM Investigation of Two-Dimensional Chiral Assemblies through Schiff-Base Condensation at a Liquid/Solid Interface

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• 作者：Fang-Yun Hu ; Xue-Mei Zhang ; Xiao-Chen Wang ; Shuai Wang ; Hai-Qiao Wang ; Wu-Biao Duan ; Qing-Dao Zeng ; Chen Wang
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2013
• 出版时间：March 13, 2013
• 年：2013
• 卷：5
• 期：5
• 页码：1583-1587
• 全文大小：429K
• 年卷期：v.5,no.5(March 13, 2013)
• ISSN：1944-8252

文摘

Nanoscaled two-dimensional (2D) chiral architectures are increasingly receiving scientific interest, because of their potential applications in many domains. In this paper, we present a new method for constructing 2D chiral architectures on surface. Based on in situ Schiff-base reaction of achiral dialdehyde with two types of achiral amines at the solid/liquid interface, two chiral species have been directly formed and confirmed by means of a scanning tunneling microscopy (STM) technique. This work introduces a novel strategy to construct 2D surface chirality, which might be applied in fabricating functional films and nanoelectronic devices.

Keywords:

chirality; self-assembly; STM; nanoflower; Schiff-base reaction; two-dimensional