The Potential Energy Surface and Equilibrium Geometry of Ar··PH3

Authors

Z. Latajka
Steve Scheiner, Utah State UniversityFollow

Document Type

Article

Journal/Book Title

Journal of Molecular Structure

Publication Date

7-1989

Publisher

Elsevier

Volume

198

First Page

205

Last Page

213

Abstract

The potential energy surface of the complex formed between Ar and PH₃ is investigated by ab initio methods. In the equilibrium geometry, the Ar atom lies 3.75 Å from the P center; the Ar··P vector makes an angle of 75° with the C₃ symmetry axis of PH₃. The SCF portion of the interaction energy is repulsive but is counteracted by an attractive MP2 contribution. The SCF term is more sensitive to the relative orientation of the two subunits and is hence responsible for the angular features of the equilibrium structure. The binding energy of Ar··PH₃ is calculated to be about 70 cm⁻¹ at the correlated level after correction for basis set superposition error.

Comments

http://www.sciencedirect.com/science/article/pii/0022286089800390

Publisher PDF is available for download through the link above.

Published by Elsevier in Journal of Molecular Structure.

Recommended Citation

The Potential Energy Surface and Equilibrium Geometry of Ar··PH3 Z. Latajka and S. Scheiner J. Mol. Struct., 1989 198, 205-213.