Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Network Covalent Solids

Network Covalent Solids

Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...

Bewley Lattice Diagram

Bewley Lattice Diagram

The Bewley lattice diagram, developed by L. V. Bewley, effectively organizes the reflections occurring during transmission-line transients. It visually represents how voltage waves propagate and reflect within a transmission line, making it easier to understand the complex interactions that occur.

States of Water

States of Water

Water exists in any one of the three classical states: solid (ice), liquid (water), and gas (steam or water vapor). The state of water depends on i) the intermolecular forces that draw molecules together and ii) the kinetic energy that leads to movements that pull them apart.
Water freezes when the intermolecular forces are greater than the kinetic energy. Unlike most other substances, water is less dense in its solid state than in its liquid state. This is because each water molecule can form...

Lattice Energies of Ionic Crystals

Lattice Energies of Ionic Crystals

Lattice energy represents the energy released when gaseous cations and anions combine to form an ionic solid, reflecting the strength of electrostatic interactions within the crystal. This process is fundamentally governed by Coulombic attraction between oppositely charged ions, where the potential energy varies inversely with the interionic distance and directly with the product of ionic charges. As ions approach one another, the electrostatic energy becomes increasingly negative, indicating a...

Trends in Lattice Energy: Ion Size and Charge

Trends in Lattice Energy: Ion Size and Charge

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:

Molecular Models

Molecular Models

Physical models representing molecular architectures of chemical compounds play essential roles in understanding chemistry. The use of molecular models makes it easier to visualize the structures and shapes of atoms and molecules.

You might also read

Related Articles

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

Sort by

Same author

Polymer models with competing collapse interactions on Husimi and Bethe lattices.

Physical review. E·2016

Same author

Chemically controlled unfolding of a RNA-like polymer model.

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

Same author

Cluster-variation approximation for a network-forming lattice-fluid model.

The Journal of chemical physics·2008

Same author

Low-temperature-induced swelling of a hydrophobic polymer: a lattice approach.

The Journal of chemical physics·2007

Same author

RNA-like polymer model: exact calculation on the Bethe lattice.

Physical review. E, Statistical, nonlinear, and soft matter physics·2007

Same author

Hydration of an apolar solute in a two-dimensional waterlike lattice fluid.

Physical review. E, Statistical, nonlinear, and soft matter physics·2005

Search research articles

Related Experiment Video

Updated: Jun 17, 2026

Tuning the Contractility and Deformation Modes of Active Actin-Based Assemblies In Vitro: From Two-Dimensional Active Networks to Liquid Crystal Drops

Tuning the Contractility and Deformation Modes of Active Actin-Based Assemblies In Vitro: From Two-Dimensional Active Networks to Liquid Crystal Drops

Published on: July 11, 2025

Revisiting waterlike network-forming lattice models.

M Pretti¹, C Buzano, E De Stefanis

¹Center for Statistical Mechanics and Complexity, CNR-INFM Roma 1, Piazzale Aldo Moro 2, I-00185 Roma, Italy. marco.pretti@polito.it

The Journal of Chemical Physics

|December 17, 2009

Summary

This study clarifies water anomalies in lattice models. Researchers found that some "waterlike" anomalies are artifacts of homogeneity assumptions, suggesting random lattices for better models.

More Related Videos

Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy

Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy

Published on: May 27, 2018

Modeling an Enzyme Active Site using Molecular Visualization Freeware

Modeling an Enzyme Active Site using Molecular Visualization Freeware

Published on: December 25, 2021

Related Experiment Videos

Last Updated: Jun 17, 2026

Tuning the Contractility and Deformation Modes of Active Actin-Based Assemblies In Vitro: From Two-Dimensional Active Networks to Liquid Crystal Drops

Tuning the Contractility and Deformation Modes of Active Actin-Based Assemblies In Vitro: From Two-Dimensional Active Networks to Liquid Crystal Drops

Published on: July 11, 2025

Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy

Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy

Published on: May 27, 2018

Modeling an Enzyme Active Site using Molecular Visualization Freeware

Modeling an Enzyme Active Site using Molecular Visualization Freeware

Published on: December 25, 2021

Area of Science:

Computational physics
Statistical mechanics
Materials science

Background:

Lattice models are used to study water anomalies.
Previous studies claimed specific thermodynamic anomalies in these models.

Purpose of the Study:

To investigate water anomalies using three-dimensional network-forming lattice models.
To clarify the phase diagrams and identify the origin of claimed anomalies.
To propose improvements for existing lattice models of water.

Main Methods:

Semianalytical calculation using a cluster-variation technique.
Comparison of results with independent Monte Carlo simulations.
Analysis of phase diagrams and identification of ordered phases.

Main Results:

The cluster-variation technique shows good agreement with Monte Carlo results.
Phase diagrams exhibit various orientationally ordered phases.
Certain "waterlike" anomalies are artifacts of homogeneity assumptions in analytical treatments.

Conclusions:

The homogeneity assumption in analytical treatments can lead to artifacts in lattice models of water.
This difficulty is common to a class of water lattice models.
Equivalent models defined on random lattices may overcome these limitations.