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金属超分子截断立方八面体在纳米线表面的分级自组装
作者:小柯机器人 发布时间:2021/4/18 14:10:31

深圳大学李霄鹏团队报道了金属超分子截断立方八面体在纳米线表面的分级自组装策略。 相关研究成果于2021年4月13日发表在《美国化学会杂志》。

植物器官的螺旋状排列,是生物系统中长程表观秩序的一个例子。这些有序的排列为科学家提供了美学上的挑战和数学上的灵感。复制斜列线规律的综合努力可能允许在分子尺度上控制粒子排列过程。

该文报道了超分子截断立方八面体(TCO)在石墨表面形成双螺旋(DH)纳米线的过程,由于TCO的对称性和TCO之间的相互作用,形成了一种非自然的寄生结构。该研究有望促进人们对设计输入的理解,这些输入是创建复杂但精确控制的分层材料所必需的。它也是自波尔迪克-柯克斯特螺旋被发现以来,为数不多的基于柏拉图或阿基米德固体的螺旋堆积结构之一。

因此,它可以为分子水平上的堆积理论研究提供实验支持。

附:英文原文

Title: Hierarchical Self-Assembly of Nanowires on the Surface by Metallo-Supramolecular Truncated Cuboctahedra

Author: Heng Wang, Kun Wang, Yaping Xu, Wu Wang, Shaohua Chen, Matthew Hart, Lukasz Wojtas, Li-Peng Zhou, Lin Gan, Xuzhou Yan, Yiming Li, Juhoon Lee, Xian-Sheng Ke, Xu-Qing Wang, Chang-Wei Zhang, Shasha Zhou, Tianyou Zhai, Hai-Bo Yang, Ming Wang, Jiaqing He, Qing-Fu Sun, Bingqian Xu, Yang Jiao, Peter J. Stang, Jonathan L. Sessler, Xiaopeng Li

Issue&Volume: April 13, 2021

Abstract: Parastichy, the spiral arrangement of plant organs, is an example of the long-range apparent order seen in biological systems. These ordered arrangements provide scientists with both an aesthetic challenge and a mathematical inspiration. Synthetic efforts to replicate the regularity of parastichy may allow for molecular-scale control over particle arrangement processes. Here we report the packing of a supramolecular truncated cuboctahedron (TCO) into double-helical (DH) nanowires on a graphite surface with a non-natural parastichy pattern ascribed to the symmetry of the TCOs and interactions between TCOs. Such a study is expected to advance our understanding of the design inputs needed to create complex, but precisely controlled, hierarchical materials. It is also one of the few reported helical packing structures based on Platonic or Archimedean solids since the discovery of the Boerdijk–Coxeter helix. As such, it may provide experimental support for studies of packing theory at the molecular level.

DOI: 10.1021/jacs.1c00625

Source: https://pubs.acs.org/doi/10.1021/jacs.1c00625

 

期刊信息

JACS:《美国化学会志》,创刊于1879年。隶属于美国化学会,最新IF:14.612
官方网址:https://pubs.acs.org/journal/jacsat
投稿链接:https://acsparagonplus.acs.org/psweb/loginForm?code=1000