Abstract

Anisotropic atom-atom pair potentials are used to describe a variety of condensed-phase properties of bromine and iodine. The potential developed for bromine gives a good description of the experimental crystal structure, lattice frequencies and liquid structure factor, and of the published thermodynamic properties of the liquid. The shortage of experimental data for iodine makes it difficult to develop and test a good pair potential, but we have still managed to reproduce the observed structures of the liquid and crystal. The need for more extensive and more accurate experimental data on the physical properties of the condensed phases of these molecules is emphasized.

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