Related Experiment Video
Updated: Apr 25, 2026

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
Published on: February 6, 2020
Self-assembly of molecular Borromean rings from bimetallic coordination rectangles
Sheng-Li Huang1, Yue-Jian Lin, Zhen-Hua Li
1State Key Laboratory of Molecular Engineering of Polymers, Department of Chemistry, Fudan University, 220 Handan road, Shanghai, 200433 (P. R. China).
Abstract:
In contrast to conventional stepwise synthesis of molecular Borromean rings, a self-assembly synthetic method which proceeds without the aid of a template has been developed. In the formation of molecular rectangles, by adjustment of the long-arm length of the rectangles, a series of size-dependent Borromean-link frameworks were constructed. Both the shortest length of two arms and the relative proportion of the length of the long arm to that of the short arm play a key role in the formation of Borromean rings. DFT calculations were used to provide theoretical support for the formation of discrete interlocked frameworks.
Related Concept Videos
Coordination Number and Geometry
Valence Bond Theory
Structural Isomerism
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly,...
Metal-Ligand Bonds
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)
Coordination Compounds and Nomenclature

