Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Valence Bond Theory02:45

Valence Bond Theory

38.5K
Overview of Valence Bond Theory
38.5K
Valence Bond Theory02:42

Valence Bond Theory

9.9K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
9.9K
Molecular Orbital Theory II03:51

Molecular Orbital Theory II

22.2K
Molecular Orbital Energy Diagrams
22.2K
Hybridization of Atomic Orbitals II03:35

Hybridization of Atomic Orbitals II

37.5K
sp3d and sp3d 2 Hybridization
37.5K
Molecular Shape and Polarity03:37

Molecular Shape and Polarity

65.9K
Dipole Moment of a Molecule
65.9K
Valence Bond Theory and Hybridized Orbitals02:38

Valence Bond Theory and Hybridized Orbitals

24.5K
According to valence bond theory, a covalent bond results when: (1) an orbital on one atom overlaps an orbital on a second atom, and (2) the single electrons in each orbital combine to form an electron pair. The strength of a covalent bond depends on the extent of overlap of the orbitals involved. Maximum overlap is possible when the orbitals overlap on a direct line between the two nuclei.
A σ bond (single bond in a Lewis structure) is a covalent bond in which the electron density is...
24.5K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Carbohydrate Physicochemical Properties: The Innate Hydrogen Bond Donating Capacities of α-Glucoside and α-Galactoside Alcohol Groups.

Angewandte Chemie (International ed. in English)·2026
Same author

Unveiled Impact of <sup>211</sup>At-Labeled Compounds' Ability to Form Halogen Bonds on Their <i>In Vivo</i> Stability.

ACS physical chemistry Au·2026
Same author

A visualizable and widely applicable steric repulsion descriptor for guiding experimental chemistry.

Chemical science·2026
Same author

Lability of Uranium in a Mine-Impacted Wetland 70 Years after the Contamination.

Environmental science & technology·2025
Same author

Incorporating Primary Aggregate Heterogeneity into DLVO Theory: A Case Study on Heteroaggregation of Silica and Goethite Colloids.

Langmuir : the ACS journal of surfaces and colloids·2025
Same author

Formation Of Gold-Astatine Bonds in N-Heterocyclic Carbene Complexes.

Chemistry (Weinheim an der Bergstrasse, Germany)·2025

Related Experiment Video

Updated: Oct 25, 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

69.3K

Astatine Facing Janus: Halogen Bonding vs. Charge-Shift Bonding.

Serigne Sarr1, Julien Pilmé2, Gilles Montavon3

  • 1Laboratoire CEISAM, UMR CNRS 6230, Université de Nantes, 2 Rue de la Houssinière, 44322 Nantes, France.

Molecules (Basel, Switzerland)
|August 7, 2021
PubMed
Summary

Astatine, a potent halogen-bond donor, forms weaker bonds than expected in C6At6 due to charge-shift bonding. This unexpected finding impacts understanding of astatine

Keywords:
ELFQTAIMastatinecharge-shift bondshalogen-bond interactionslocal electrophilicityspin–orbit coupling

More Related Videos

Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid
08:54

Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid

Published on: January 25, 2020

5.8K
Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
10:52

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex

Published on: July 27, 2022

3.0K

Related Experiment Videos

Last Updated: Oct 25, 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

69.3K
Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid
08:54

Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid

Published on: January 25, 2020

5.8K
Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
10:52

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex

Published on: July 27, 2022

3.0K

Area of Science:

  • Chemical bonding
  • Quantum chemistry
  • Astatine chemistry

Background:

  • Halogen bonds are crucial non-covalent interactions.
  • Astatine is a unique element with potential for strong halogen bonding.
  • Previous studies have not fully explored astatine's role in halogen bonding.

Purpose of the Study:

  • To investigate the nature of halogen-bond interactions involving astatine.
  • To compare halogen bonding in C6At6 with its iodinated analogue, C6I6.
  • To elucidate the electronic properties and bonding mechanisms contributing to these interactions.

Main Methods:

  • Two-component relativistic calculations.
  • Quantum chemical topology (QCT) analyses.
  • Relativistic spin-orbit interaction analysis.

Main Results:

  • C6At6 exhibits both halogen-bond donor and acceptor capabilities.
  • Halogen bonds formed by C6At6 can be weaker than those of C6I6, contrary to expectations based on polarizability.
  • Charge-shift bonding in C-At bonds weakens astatine's electrophilicity at the sigma-hole, reducing charge transfer in halogen bonding.

Conclusions:

  • Charge-shift bonding and halogen bonding exhibit antinomic character in astatine systems.
  • The C-At bond's charge-shift nature leads to weaker astatine-mediated interactions compared to iodine.
  • This study provides new insights into the complexities of halogen bonding with heavy elements.