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Related Concept Videos

Hydrogen Bonds01:04

Hydrogen Bonds

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...
Hydrogen Bonds00:26

Hydrogen Bonds

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.
Intermolecular Forces03:13

Intermolecular Forces

Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen bonds, and dispersion...
Intermolecular Forces03:13

Intermolecular Forces

Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen bonds, and dispersion...
Ionic Bonds00:42

Ionic Bonds

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...
Ionic Bonds00:42

Ionic Bonds

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...

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Related Experiment Video

Updated: May 24, 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

Hydrogen bonds: a structural insight into ionic liquids.

Kun Dong1, Suojiang Zhang

  • 1Beijing Key Laboratory of Ionic Liquids Clean Processes, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China.

Chemistry (Weinheim an Der Bergstrasse, Germany)
|February 15, 2012
PubMed
Summary
This summary is machine-generated.

Hydrogen bonds, not just electrostatic forces, significantly influence ionic liquids (ILs) properties. Understanding these interactions is key to designing new ILs for complex chemical processes.

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Area of Science:

  • Materials Science
  • Physical Chemistry
  • Chemical Engineering

Background:

  • Ionic liquids (ILs) are gaining attention for their unique properties and applications.
  • The dominant force determining IL behavior is debated, with electrostatic Coulomb force traditionally assumed.
  • Experimental data challenges the simplified molten-salt model for ILs.

Purpose of the Study:

  • To investigate the role of hydrogen bonds in ionic liquids.
  • To provide insights into the effects and functions of hydrogen bonds in ILs.
  • To guide the rational design of novel ILs for specific chemical applications.

Main Methods:

  • Review of experimental findings on hydrogen bonds in ILs.
  • Analysis of computational studies concerning hydrogen bonds in ILs.

Main Results:

  • Hydrogen bonds are identified as a crucial noncovalent interaction in ILs.
  • Evidence suggests hydrogen bonds significantly impact IL properties and applications.
  • The influence of hydrogen bonds extends beyond simple electrostatic interactions.

Conclusions:

  • A comprehensive understanding of hydrogen bonds is essential for predicting and controlling IL behavior.
  • Insights into IL structure, particularly hydrogen bonding, enable tailored material design.
  • This knowledge facilitates the development of advanced ILs for demanding chemical processes.