Tuning Chirality of Self-Assembled PTCDA Molecules on a Au(111) Surface by Na Coordination

doi:10.1021/acsnano.3c02819

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	Tuning Chirality of Self-Assembled PTCDA Molecules on a Au(111) Surface by Na Coordination
	Z. Liang; S. Wu; J. Wang; Y. Qin; F. Cheng; L. Cao and H. Xu
	2023
发表期刊	ACS Nano
ISSN	19360851
卷号	17 期号:11 页码:10938-10946
摘要	Chiral nanostructures are much desired in many applications, such as chiral sensing, chiroptics, chiral electronics, and asymmetric catalysis. In building chiral nanostructures, the on-surface metal-organic self-assembly is naturally suitable in obtaining atomically precise structures, but that is under the premise that there are enantioselective assembly strategies to create large-scale homochiral networks. Here, we report an approach to build chiral metal-organic networks using 3,4,9,10-perylene tetracarboxylic dianhydride (PTCDA) molecules and low-cost sodium chloride (NaCl) in a controllable manner on Au(111). The chirality induction and transfer processes during network evolution with increased Na ion ratios were captured by scanning tunneling microscopy (STM), X-ray photoelectron spectroscopy (XPS), and density functional theory (DFT) methodologies. Our findings show that Na ion incorporation into achiral PTCDA molecules partially breaks intermolecular hydrogen bonds and coordinates with carboxyl oxygen atoms, which initiates a collective sliding motion of PTCDA molecules along specific directions. Consequently, "molecular columns"linked by hydrogen bonds were formed in the rearranged Na-PTCDA networks. Notably, the direction of Na ion incorporation determines the chiral characteristic by guiding the sliding direction of the molecular columns, and chirality can be transferred from Na0.5PTCDA to Na1PTCDA networks. Furthermore, our results indicate that the chirality transferring process is disrupted when intermolecular hydrogen bonds are entirely replaced by Na ions at a high Na dopant concentration. Our study provides fundamental insights into the mechanism of coordination-induced chirality in metal-organic self-assemblies and offers potential strategies for synthesizing large homochiral metal-organic networks. © 2023 American Chemical Society.
DOI	10.1021/acsnano.3c02819
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收录类别	sci ; ei
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67672
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Z. Liang,S. Wu,J. Wang,et al. Tuning Chirality of Self-Assembled PTCDA Molecules on a Au(111) Surface by Na Coordination[J]. ACS Nano,2023,17(11):10938-10946.
APA	Z. Liang,S. Wu,J. Wang,Y. Qin,F. Cheng,&L. Cao and H. Xu.(2023).Tuning Chirality of Self-Assembled PTCDA Molecules on a Au(111) Surface by Na Coordination.ACS Nano,17(11),10938-10946.
MLA	Z. Liang,et al."Tuning Chirality of Self-Assembled PTCDA Molecules on a Au(111) Surface by Na Coordination".ACS Nano 17.11(2023):10938-10946.

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