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Updated: Apr 12, 2026

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics
Published on: April 12, 2019
Calculation of the stability of nonperiodic solids using classical force fields and the method of increments: N2O as
Carsten Müller1, Daniel Spångberg2
1Institut für Chemie und Biochemie, Physikalische und Theoretische Chemie, Freie Universität Berlin, Takustraße 3, 14195, Berlin, Germany.
Abstract:
Combining classical force fields for the Hartree-Fock (HF) part and the method of increments for post-HF contributions, we calculate the cohesive energy of the ordered and randomly disordered nitrous oxide (N2 O) solid. At 0 K, ordered N2 O is most favorable with a cohesive energy of -27.7 kJ/mol. At temperatures above 60 K, more disordered structures become compatible and a phase transition to completely disordered N2 O is predicted. Comparison with experiment in literature suggests that experimentally prepared N2 O crystals are mainly disordered due to a prohibitively high activation energy of ordering processes. © 2015 Wiley Periodicals, Inc.
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