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A Review on Low-Molecular-Weight Gels Driven by Halogen-Effect
Yuping Zhang1, Jing Wang2, Yonggui Liao1
1Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 430074, Wuhan, China.
Halogen bonding drives the assembly of low-molecular-weight gels (LMWGs), offering unique properties for soft materials. This review explores recent progress, challenges, and future prospects of halogen-bonded gels.
Area of Science:
- Supramolecular Chemistry
- Materials Science
- Crystal Engineering
Background:
- Halogen bonding is a significant non-covalent interaction, analogous to hydrogen bonding.
- It plays a crucial role in molecular assembly and the development of functional soft materials like liquid crystals, gels, and polymers.
- Recent research highlights the potential of halogen bonding in creating low-molecular-weight gels (LMWGs).
Purpose of the Study:
- To provide a comprehensive review of low-molecular-weight gels (LMWGs) driven by halogen bonding.
- To discuss the structural characteristics and formation of halogen-bonded supramolecular gels.
- To explore the relationship between halogen bonding and other non-covalent interactions.
Main Methods:
- Review of recent literature on halogen-bonded low-molecular-weight gels.
- Analysis of gel formation based on the number of components.
- Examination of structural features and the interplay of non-covalent interactions.
Main Results:
- Halogen bonding is a key driver for the self-assembly of low-molecular-weight gels.
- The review categorizes gels by component number and analyzes structural properties.
- It highlights the synergy between halogen bonding and other interactions in gelation.
Conclusions:
- Halogen-bonded gels represent a promising area in soft materials science.
- Further research into their challenges and future prospects is warranted.
- These gels offer exciting opportunities for novel applications in materials development.
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