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From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding06:44

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

69.6K
A protocol for the synthesis of a new type of mesogens, based on the halogen-bonded supramolecular anion [CnF2n+1-I···I···I-CnF2n+1]−, is...
69.6K
Hydrogen Bonds00:26

Hydrogen Bonds

131.2K
Hydrogen bonds are weak attractions between atoms that have formed other chemical bonds. One of these atoms is electronegative, like oxygen, and has a partial negative charge. The other is a hydrogen atom that has bonded with another electronegative atom and has a partial positive charge.
Hydrogen Bonds Control the World!
Because hydrogen has very weak electronegativity when it binds with a strongly electronegative atom, such as oxygen or nitrogen, electrons in the bond are unequally shared....
131.2K
Hydrogen Bonds01:04

Hydrogen Bonds

13.3K
A hydrogen bond is formed when a weakly positive hydrogen atom already bonded to one electronegative atom (for example, the oxygen in the water molecule) is attracted to another electronegative atom from another polar molecule, such as water (H2O), hydrogen fluoride (HF), or ammonia (NH3). The huge electronegativity difference between the H atom (2.1) and the atom to which it is bonded (4.0 for an F atom, 3.5 for an O atom, or 3.0 for an N atom), combined with the very small size of an H atom...
13.3K
Bonding in Metals02:32

Bonding in Metals

52.0K
Metallic bonds are formed between two metal atoms. A simplified model to describe metallic bonding has been developed by Paul Drüde called the “Electron Sea Model”. 
52.0K
Ionic Bonds00:42

Ionic Bonds

128.9K
Overview
When atoms gain or lose electrons to achieve a more stable electron configuration they form ions. Ionic bonds are electrostatic attractions between ions with opposite charges. Ionic compounds are rigid and brittle when solid and may dissociate into their constituent ions in water. Covalent compounds, by contrast, remain intact unless a chemical reaction breaks them.
Opposing Charges Hold Ions Together in Ionic Compounds
Ionic bonds are reversible electrostatic interactions between ions...
128.9K
Valence Bond Theory02:45

Valence Bond Theory

49.8K
Overview of Valence Bond Theory
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Updated: Jan 20, 2026

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
06:44

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

Published on: March 24, 2018

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在固体-液体界面上,素结合和气结合光离子传感器.

Robert Hein1,2, Mohamed Sharafeldin1, Edward J Mitchell1

  • 1Department of Chemistry, Chemistry Research Laboratory, University of Oxford South Parks Road Oxford OX1 3QZ UK paul.beer@chem.ox.ac.uk.

Chemical science
|January 19, 2026
PubMed
概括

这项研究引入了一种新的素结合 (XB) 单层传感器,用于使用光在固体-液体界面检测离子. 这种可重复使用的传感器在有机溶剂和水中工作,性能优于传统的键传感器.

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科学领域:

  • 超分子化学 超分子化学
  • 分析化学 分析化学
  • 材料科学 材料科学 材料科学

背景情况:

  • 素结合 (XB) 是在溶液中对离子识别的关键相互作用.
  • 将XB离子传感转化为实际设备,特别是在水中,需要材料集成.
  • 当前的XB传感器应用经常面临水和可重复使用性的限制.

研究的目的:

  • 开发第一个素结合单层架构,用于在固体-液体界面检测离子.
  • 为了使传感器能够重复使用和在有机溶剂和纯水中检测阳离子.
  • 为了比较XB接口与溶液相XB受体和键 (HB) 同源的性能.

主要方法:

  • 通过胺键形成,对BODIPY-bis(iodo) triazole受体的共价固定在玻璃幻灯片上.
  • 在固体支上开发XB单层架构.
  • 在固体-液体界面的基于光的离子检测.
  • 在溶液和表面上对XB和HB接口进行比较分析.

主要成果:

  • 成功创建了可重复使用的XB单层传感器,用于离子检测.
  • 在有机溶剂和纯水中表现出阴离子感应能力.
  • 与溶液相受体相比,表面固定在很大程度上保留了光感应性能.
  • 在结合强度和信号响应方面,XB接口显著优于HB接口.

结论:

  • 开发的XB单层架构能够在固体-液体接口上进行强大的离子传感.
  • 这种方法促进了传感器的重复使用,并克服了在溶液相传感中常见的溶解性问题.
  • 这些发现支持将溶液相XB离子受体转化为实际的分子膜传感格式.