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Content archived on 2024-05-07

Development of accurate intermolecular potentials - improving the description of the short-range terms

Objective



We propose to obtain accurate expressions for the short range intermolecular interaction energy, as far as possible in terms of one-molecule properties, and to develop a database of such properties that can be used in intermolecular potentials for new systems . The repulsive interaction energy between two molecules will be obtained from the repulsion between each molecuLe and some suitable test particle, calculated taking correlation corrections into account. A model orientation-dependent atom-atom potential will be fitted to the calculated energy. A suitabLe combining rule will be used to obtain the molecule-molecule interaction from molecule-probe and probe-probe interactions, and it will then be refined using perturbation calculations for the complex. In this way we can compile a database of potentials that can be used in any of the applications where the current generation of crude
point-charge/Lennard-Jones potentials are used, but that should give much better results.

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Coordinator

University of Cambridge
EU contribution
No data
Address
Lensfield Road
CB2 1EW Cambridge
United Kingdom

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Participants (1)

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