相关实验视频

Updated: Apr 11, 2026

Origami Inspired Self-assembly of Patterned and Reconfigurable Particles

Origami Inspired Self-assembly of Patterned and Reconfigurable Particles

Published on: February 4, 2013

基于的自组装架构

Pierre Mobian¹, David-Jérôme Pham¹, Alain Chaumont²

¹Université de Strasbourg, CNRS, CMC UMR 7140 (team SFAM), F-67000 Strasbourg, France.

Journal of the American Chemical Society

|May 10, 2024

概括

研究人员合成了圆形三核螺旋体,发现溶剂选择影响了它们的对称性. 螺旋体中的联体A在异体和同体形式之间表现出独特的溶剂依赖平衡.

科学领域:

协调化学
超分子化学
材料科学

背景情况:

金属有机架构的自我组装为复杂结构提供了途径.
基于的螺旋具有独特的结构和电子特性.
在超分子组合中控制对称性对于功能应用至关重要.

研究的目的:

通过各种二胺联体合成和表征圆形三核螺旋体.
研究二胺联体和溶剂对这些螺旋体的对称性和聚合的影响.
阐明螺旋体中溶剂诱导的立体化学变化的机制和热力学.

主要方法:

从双链,异氧化物和二胺联体合成圆形三核.
使用X射线结晶学和溶液状态分析 (NMR光谱) 的结构特征.
包括DFT计算和经典分子动力学模拟在内的计算研究.

主要成果:

形成具有甲,乙,和D连体的异质 (C1对称性) 三核.
连接物F产生了同体性 (C3对称性) 聚合物,而连接物E形成了六体性聚合物.
[Ti3L3(A) 3中的联体A在二甲中的异体和同体形式之间表现出依赖于溶剂的平衡,K值为0.34.

结论:

通过选择二胺联体和溶剂来控制螺旋体的对称性.
一个独特的溶剂诱导,分子内立体化学转化发生在[Ti3L3(A) 3螺旋体中.
计算研究合理化了观察到的溶剂诱导的对称性交换机,突出了它对三核组件结构的依赖.

更多相关视频

Self-assembly of Complex Two-dimensional Shapes from Single-stranded DNA Tiles

Self-assembly of Complex Two-dimensional Shapes from Single-stranded DNA Tiles

Published on: May 8, 2015

Stable DNA Motifs, 1D and 2D Nanostructures Constructed from Small Circular DNA Molecules

Stable DNA Motifs, 1D and 2D Nanostructures Constructed from Small Circular DNA Molecules

Published on: April 12, 2019

相关概念视频

Assembly of Cytoskeletal Filaments

Assembly of Cytoskeletal Filaments

Cytoskeletal filaments are polymeric forms of smaller protein subunits. However, individual cytoskeletal filaments may easily disassemble or associate with other similar filaments to form rigid structures. Microfilaments, made of actin monomers, rely on actin-binding proteins to form bundles and create networks of individual actin filaments. Microtubules rely on microtubule-associated proteins (MAPs) to form sturdy cylindrical structures. However, the proteins involved in forming complex...