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Hydrogen Bonds01:04

Hydrogen Bonds

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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...
12.7K
Hydrogen Bonds00:26

Hydrogen Bonds

129.4K
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....
129.4K
Noncovalent Attractions in Biomolecules02:35

Noncovalent Attractions in Biomolecules

62.8K
Noncovalent attractions are associations within and between molecules that influence the shape and structural stability of complexes. These interactions differ from covalent bonding in that they do not involve sharing of electrons.
Four types of noncovalent interactions are hydrogen bonds, van der Waals forces, ionic bonds, and hydrophobic interactions.
Hydrogen bonding results from the electrostatic attraction of a hydrogen atom covalently bonded to a strong-electronegative atom like oxygen,...
62.8K
Noncovalent Attractions in Biomolecules02:35

Noncovalent Attractions in Biomolecules

19.1K
19.1K
Halogens03:01

Halogens

22.8K
Group 17 elements, known as halogens, are nonmetals. At room temperature, fluorine and chlorine are gases, bromine is a liquid, and iodine a solid. Astatine is a highly unstable radioactive element, so currently, most of its properties are unknown due to its short half-life. Tennessine is a synthetic element also predicted to be in this group. 
22.8K
Valence Bond Theory02:45

Valence Bond Theory

48.8K
Overview of Valence Bond Theory
48.8K

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Updated: Dec 24, 2025

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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Halogen bonding for molecular recognition: new developments in materials and biological sciences.

Gilles Berger1, Pierre Frangville, Franck Meyer

  • 1Microbiology, Bioorganic and Macromolecular Chemistry, Faculty of Pharmacy, Université Libre de Bruxelles (ULB), Bruxelles, 1050, Belgium. Franck.meyer@ulb.be.

Chemical Communications (Cambridge, England)
|April 17, 2020
PubMed
Summary
This summary is machine-generated.

Halogen bonding, a non-covalent interaction, is a powerful tool in supramolecular chemistry. It enables self-assembly and has diverse applications in materials science, polymer science, and biological systems.

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Area of Science:

  • Supramolecular Chemistry
  • Materials Science
  • Chemical Physics

Background:

  • Halogen bonding has gained prominence as a significant non-covalent interaction over the past two decades.
  • It is recognized for its utility in crystal engineering and the self-assembly of molecular entities.
  • Its unique characteristics have led to applications in various scientific domains.

Purpose of the Study:

  • To highlight recent advancements and new concepts utilizing halogen bonding.
  • To explore applications in polymer science, electrochemistry, electronic, and sensing materials.
  • To discuss the role of halogenated compounds in transmembrane transport.

Main Methods:

  • Review of recent findings and literature.
  • Focus on modern computational tools for analyzing halogen bond nature.
  • Energy decomposition analysis.

Main Results:

  • Halogen bonding is a versatile tool for crystal engineering and supramolecular assembly.
  • Applications span polymer science, electrochemistry, electronic materials, and sensing.
  • Halogenated compounds show promise in transmembrane transport.

Conclusions:

  • Halogen bonding is a key interaction in developing functional materials and systems.
  • Understanding its nature through computational methods is crucial for further innovation.
  • Continued exploration promises novel applications in diverse scientific fields.