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

Lattice Centering and Coordination Number02:33

Lattice Centering and Coordination Number

14.1K
The structure of a crystalline solid, whether a metal or not, is best described by considering its simplest repeating unit, which is referred to as its unit cell. The unit cell consists of lattice points that represent the locations of atoms or ions. The entire structure then consists of this unit cell repeating in three dimensions. The three different types of unit cells present in the cubic lattice are illustrated in Figure 1.
Types of Unit Cells
Imagine taking a large number of identical...
14.1K
Trends in Lattice Energy: Ion Size and Charge02:54

Trends in Lattice Energy: Ion Size and Charge

27.0K
An ionic compound is stable because of the electrostatic attraction between its positive and negative ions. The lattice energy of a compound is a measure of the strength of this attraction. The lattice energy (ΔHlattice) of an ionic compound is defined as the energy required to separate one mole of the solid into its component gaseous ions. For the ionic solid sodium chloride, the lattice energy is the enthalpy change of the process:
27.0K
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

31.5K
Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
31.5K
Van der Waals Interactions01:24

Van der Waals Interactions

72.8K
Atoms and molecules interact with each other through intermolecular forces. These electrostatic forces arise from attractive or repulsive interactions between particles with permanent, partial, or temporary charges. The intermolecular forces between neutral atoms and molecules are ion–dipole, dipole–dipole, and dispersion forces, collectively known as van der Waals forces.
72.8K
Debye–Huckel–Onsager Conductance Equation01:28

Debye–Huckel–Onsager Conductance Equation

61
The Debye-Hückel-Onsager equation is a cornerstone of physical chemistry, providing a method to determine the molar conductance (Λm) and molar conductance at infinite dilution (Λ°m) for uni-univalent electrolytes.Uni-univalent electrolytes are electrolytes that dissociate in solution to produce one cation with a +1 charge and one anion with a –1 charge per formula unit.This equation addresses two crucial phenomena: the asymmetry effect and the electrophoretic effect.
61

You might also read

Related Articles

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

Sort by
Same author

Nematic order in a simple-cubic lattice-spin model with full-ranged dipolar interactions.

Physical review. E·2016
Same author

Classical lattice spin models involving singular interactions isotropic in spin space.

Physical review. E, Statistical, nonlinear, and soft matter physics·2015
Same author

Comment on "Temperature-dependent orientational ordering on a spherical surface modeled with a lattice spin model".

Physical review. E, Statistical, nonlinear, and soft matter physics·2015
Same author

Nematic order by thermal disorder in a three-dimensional lattice spin model with dipolarlike interactions.

Physical review. E, Statistical, nonlinear, and soft matter physics·2014
Same author

Calamitic and antinematic orientational order produced by the generalized Straley lattice model.

Physical review. E, Statistical, nonlinear, and soft matter physics·2013
Same author

Antinematic orientational order produced by an extreme case of the generalized Straley lattice model.

Physical review. E, Statistical, nonlinear, and soft matter physics·2012

Related Experiment Video

Updated: Mar 12, 2026

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids
08:04

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids

Published on: May 27, 2020

9.0K

Computer simulation study of a mesogenic lattice model based on long-range dispersion interactions.

Silvano Romano1

  • 1Physics Department, University of Pavia, via A. Bassi 6, 27100 Pavia, Italy.

Physical Review. E
|November 15, 2016
PubMed
Summary
This summary is machine-generated.

Researchers explored orientational order in materials. A lattice model with uniaxial particles and long-range interactions showed only fourth-rank cubatic order, not the expected nematic order.

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

6.1K
Author Spotlight: Advancing Cell Membrane Biophysics - Exploring Interactions and Challenges Through Experimental and Computational Approaches
07:31

Author Spotlight: Advancing Cell Membrane Biophysics - Exploring Interactions and Challenges Through Experimental and Computational Approaches

Published on: September 1, 2023

3.3K

Related Experiment Videos

Last Updated: Mar 12, 2026

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids
08:04

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids

Published on: May 27, 2020

9.0K
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

6.1K
Author Spotlight: Advancing Cell Membrane Biophysics - Exploring Interactions and Challenges Through Experimental and Computational Approaches
07:31

Author Spotlight: Advancing Cell Membrane Biophysics - Exploring Interactions and Challenges Through Experimental and Computational Approaches

Published on: September 1, 2023

3.3K

Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Statistical Mechanics

Background:

  • Thermotropic biaxial nematic phases have been experimentally realized.
  • Tetrahedratic and cubatic phases, involving higher-rank orientational orders, lack experimental realization.
  • Previous models of cubatic order used cubic symmetries or uniaxial particles with nearest-neighbor interactions.

Purpose of the Study:

  • To investigate the potential for cubatic order in a lattice model with long-range interactions.
  • To explore the role of interaction range on orientational ordering in uniaxial particle systems.
  • To determine if a lattice model with specific interactions can exhibit fourth-rank cubatic order.

Main Methods:

  • Monte Carlo simulations were employed.
  • A lattice model of uniaxial particles was simulated.
  • Long-range dispersion interactions (London-De Boer-Heller type) were considered.

Main Results:

  • The model exhibited fourth-rank cubatic order.
  • No second-rank nematic order was observed.
  • This contrasts with models using nearest-neighbor interactions, which show nematic behavior.

Conclusions:

  • Long-range interactions in this lattice model favor cubatic order over nematic order.
  • Experimental realization of cubatic phases remains a challenge.
  • The findings contribute to understanding orientational ordering in condensed matter systems.