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

Bonding and Strength of Aggregate01:12

Bonding and Strength of Aggregate

The bond between aggregate particles and the cement matrix is significantly influenced by the shape and surface texture of the aggregates. High-strength concretes benefit from a rougher texture, which leads to stronger bonding due to greater adhesion. Angular aggregates with larger surface areas also enhance this bond. The bonding quality, however, is complex to assess as no universally accepted test exists. Good bonding is indicated when a crushed concrete specimen shows some aggregate...
Bond Polarity, Dipole Moment, and Percent Ionic Character02:48

Bond Polarity, Dipole Moment, and Percent Ionic Character

Bond Polarity
MO Theory and Covalent Bonding02:40

MO Theory and Covalent Bonding

The molecular orbital theory describes the distribution of electrons in molecules in a manner similar to the distribution of electrons in atomic orbitals. The region of space in which a valence electron in a molecule is likely to be found is called a molecular orbital. Mathematically, the linear combination of atomic orbitals (LCAO) generates molecular orbitals. Combinations of in-phase atomic orbital wave functions result in regions with a high probability of electron density, while...
Qualitative Analysis01:10

Qualitative Analysis

Qualitative analysis is the process of identifying elements, ions, or compounds in an unknown sample. It is the first and most fundamental type of analysis based on the hierarchy of analytical goals. This hierarchy is significant as it provides a structured approach to scientific research, with qualitative analysis serving as the initial step, providing essential information before moving on to quantitative or other forms of analysis.
There are two main approaches to qualitative analysis:...
Qualitative Analysis03:46

Qualitative Analysis

For solutions containing mixtures of different cations, the identity of each cation can be determined by qualitative analysis. This technique involves a series of selective precipitations with different chemical reagents, each reaction producing a characteristic precipitate for a specific group of cations. Metal ions within a group are further separated by varying the pH, heating the mixture to redissolve a precipitate, or adding other reagents to form complex ions.
For instance, group IV...
Chemical Bonds02:40

Chemical Bonds


Atoms participate in a chemical bond formation to acquire a completed valence-shell electron configuration similar to that of the noble gas nearest to it in atomic number. Ionic, covalent, and metallic bonds are some of the important types of chemical bonds. Bond energy and bond length determine the strength of a chemical bond.
Types of Chemical Bonds
An ionic bond is formed due to electrostatic attraction between cations and anions. Often, the ions are formed by the transfer of electrons from...

You might also read

Related Articles

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

Sort by
Same author

Accelerating the Structure Exploration of Diverse Bi-Pt Nanoclusters via Physics-Informed Machine Learning Potential and Particle Swarm Optimization.

Chemphyschem : a European journal of chemical physics and physical chemistry·2025
Same author

Long-term follow-up outcomes in congenital thrombotic thrombocytopenic purpura.

Blood·2025
Same author

Impact of new medications on the treatment of immune TTP.

Blood·2025
Same author

Demystifying autoimmune HIT: what it is, when to test, and how to treat.

Hematology. American Society of Hematology. Education Program·2024
Same author

Competition between Loss of H<sub>2</sub> versus H+H in the Fragmentation of the Fluorene Cation.

Chemphyschem : a European journal of chemical physics and physical chemistry·2023
Same author

Author Correction: Artificial intelligence driven design of catalysts and materials for ring opening polymerization using a domain-specific language.

Nature communications·2023

Related Experiment Video

Updated: Jun 19, 2026

Fabrication of Uniform Nanoscale Cavities via Silicon Direct Wafer Bonding
10:32

Fabrication of Uniform Nanoscale Cavities via Silicon Direct Wafer Bonding

Published on: January 9, 2014

Quantitative characteristics of qualitative localized bonding patterns.

Dmitry Yu Zubarev1, Dominik Domin, William A Lester

  • 1Kenneth S. Pitzer Center for Theoretical Chemistry, Department of Chemistry, University of California at Berkeley, Berkeley, California 94720-1460, USA.

The Journal of Physical Chemistry. A
|October 13, 2009
PubMed
Summary

The study introduces charge-density-weighted electron localization function (ELF rho) to quantitatively analyze chemical bonding. This method enhances the adaptive natural density partitioning (AdNDP) by providing detailed insights into localized and delocalized bonding patterns.

More Related Videos

Solvent Bonding for Fabrication of PMMA and COP Microfluidic Devices
04:54

Solvent Bonding for Fabrication of PMMA and COP Microfluidic Devices

Published on: January 17, 2017

Related Experiment Videos

Last Updated: Jun 19, 2026

Fabrication of Uniform Nanoscale Cavities via Silicon Direct Wafer Bonding
10:32

Fabrication of Uniform Nanoscale Cavities via Silicon Direct Wafer Bonding

Published on: January 9, 2014

Solvent Bonding for Fabrication of PMMA and COP Microfluidic Devices
04:54

Solvent Bonding for Fabrication of PMMA and COP Microfluidic Devices

Published on: January 17, 2017

Area of Science:

  • Quantum Chemistry
  • Theoretical Chemistry
  • Computational Chemistry

Background:

  • Adaptive Natural Density Partitioning (AdNDP) offers qualitative insights into chemical bonding.
  • Existing methods like the Electron Localization Function (ELF) provide quantitative bonding characteristics.
  • There is a need to integrate qualitative and quantitative approaches for a comprehensive understanding of electronic structure.

Purpose of the Study:

  • To quantitatively characterize localized and delocalized chemical bonding using ELF and ELF rho.
  • To evaluate the effectiveness of ELF rho in analyzing bonding in aromatic, conflicting aromatic, and antiaromatic systems.
  • To compare the descriptive power of ELF rho with the traditional ELF.

Main Methods:

  • Utilized the Electron Localization Function (ELF) and charge-density-weighted ELF (ELF rho).
  • Employed adaptive natural density partitioning (AdNDP) to obtain localized multicenter two-electron (nc-2e) bonds.
  • Calculated ELF rho using both canonical molecular orbitals (CMOs) and AdNDP-localized nc-2e bonds.

Main Results:

  • ELF rho provides a more detailed description of bonding compared to ELF.
  • The study successfully characterized localized and delocalized bonding in various aromatic systems.
  • ELF rho enhances the quantitative analysis of electronic structure patterns derived from AdNDP.

Conclusions:

  • ELF rho is a valuable tool for quantitative analysis of chemical bonding.
  • Combining AdNDP with ELF rho offers a powerful approach to understanding electronic structure.
  • The developed methodology provides deeper insights into the nature of bonding in diverse chemical systems.