Related Experiment Video
Updated: Mar 29, 2026

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations
Published on: October 12, 2019
Searching for Saddle Points by Using the Nudged Elastic Band Method: An Implementation for Gas-Phase Systems
Núria González-García1, Jingzhi Pu1, Àngels González-Lafont1
1Departament de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain, and Department of Chemistry and Supercomputing Institute, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455-0431.
Abstract:
A new implementation of the Nudged Elastic Band (NEB) optimization method is presented. This approach uses a global procedure that yields the whole reaction path, and thus it provides an alternative to the sequential optimization of the transition state and consequent calculation of the minimum energy path. Furthermore the algorithm is very useful when one is not sure if a saddle point exists, because it can be used to eliminate the possibility of a saddle point when one does not exist. Three different versions of the NEB algorithm have been implemented. The influences of various parameters and methodological choices on the performance of the method have been studied, and the quality of the results is assessed by comparison with the saddle point and minimum energy path calculations sequential method. Recommendations are made for algorithmic choices and default parameters.
More Related Videos
10:52Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics
Published on: April 12, 2019
10:10Transport Properties of Ibuprofen Encapsulated in Cyclodextrin Nanosponge Hydrogels: A Proton HR-MAS NMR Spectroscopy Study
Published on: August 15, 2016
Related Concept Videos
Elastic Strain Energy for Shearing Stresses
Elastic Strain Energy for Normal Stresses
If...
Equilibrium Conditions for a Particle
To understand the concept of equilibrium, let us first consider the forces acting on an object. When different forces act on an object, they can...
Angle of Twist - Elastic Range
¹H NMR of Conformationally Flexible Molecules: Temporal Resolution
Homogeneous Equilibria for Gaseous Reactions
For gas-phase reactions, the equilibrium constant may be expressed in terms of either the molar concentrations (Kc) or partial pressures (Kp) of the reactants and products. A relation between these two K values may be simply derived from the ideal gas equation and the definition of molarity. According to the ideal gas equation: