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Related Concept Videos

Radical Formation: Homolysis00:54

Radical Formation: Homolysis

A bond is formed between two atoms by sharing two electrons. When this bond is broken by supplying sufficient energy, either two electrons can be taken up by one atom forming ions by the cleavage called heterolysis, or the two electrons are shared by two atoms, with one each creating radicals by the cleavage called homolysis.
Cationic Chain-Growth Polymerization: Mechanism00:57

Cationic Chain-Growth Polymerization: Mechanism

The cationic polymerization mechanism consists of three steps: initiation, propagation, and termination. In the initiation step of the polymerization process, the π bond of a monomer gets protonated by the Lewis acid catalyst, which is formed from boron trifluoride and water. The protonation of the π bond generates a carbocation stabilized by the electron‐donating group. In the propagation step, the π bond of the second monomer acts as a nucleophile and attacks the generated carbocation,...

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Related Experiment Video

Updated: Jun 6, 2026

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
09:34

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly

Published on: February 6, 2020

Boronic acid building blocks: tools for self assembly.

Ryuhei Nishiyabu1, Yuji Kubo, Tony D James

  • 1Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1, Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan.

Chemical Communications (Cambridge, England)
|November 30, 2010
PubMed
Summary
This summary is machine-generated.

Dynamic covalent chemistry, utilizing boronic acid-diol complexation, enables self-correcting molecular systems. This approach facilitates the creation of diverse self-assembled structures like cages and porous polymers.

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Area of Science:

  • Supramolecular Chemistry
  • Materials Science
  • Organic Chemistry

Background:

  • Dynamic covalent chemistry offers reversible bond formation for self-healing and adaptive materials.
  • Boronic acid-diol complexation is a key reversible reaction in dynamic covalent chemistry.
  • Self-assembly driven by dynamic covalent bonds leads to complex molecular architectures.

Purpose of the Study:

  • To highlight the potential of boronic acid-diol complexation in creating dynamic multicomponent systems.
  • To showcase the structure-directing capabilities of this chemistry in self-organization.
  • To review advancements in synthesizing reversible boron-containing architectures.

Main Methods:

  • Utilizing dynamic covalent chemistry principles.
  • Employing boronic acid-diol complexation for reversible bond formation.
  • Investigating structure-property relationships in self-assembled systems.

Main Results:

  • Demonstrated the thermodynamic favorability of self-correction in dynamic covalent systems.
  • Successfully synthesized various self-organized structures including macrocycles, cages, and capsules.
  • Developed porous covalent organic frameworks and polymers through structure-directed assembly.

Conclusions:

  • Boronic acid-diol complexation is a versatile strategy for constructing dynamic covalent architectures.
  • The reversible nature of these systems allows for thermodynamic control over self-assembly.
  • This approach enables the design of sophisticated materials with tunable properties.