dorsal/arxiv
View SchemaQuasi-chemical Theories of Associated Liquids
| Authors | Lawrence R. Pratt, Randall A. LaViolette |
|---|---|
| Categories | |
| ArXiv ID | physics/9803018 |
| URL | https://arxiv.org/abs/physics/9803018 |
| DOI | 10.1080/002689798167485 |
| Journal | Molec. Phys. 94, 909 (1998) |
Abstract
It is shown how traditional development of theories of fluids based upon the concept of physical clustering can be adapted to an alternative local clustering definition. The alternative definition can preserve a detailed valence description of the interactions between a solution species and its near-neighbors, i.e., cooperativity and saturation of coordination for strong association. These clusters remain finite even for condensed phases. The simplest theory to which these developments lead is analogous to quasi-chemical theories of cooperative phenomena. The present quasi-chemical theories require additional consideration of packing issues because they don't impose lattice discretizations on the continuous problem. These quasi-chemical theories do not require pair decomposable interaction potential energy models. Since calculations may be required only for moderately sized clusters, we suggest that these quasi-chemical theories could be implemented with computational tools of current electronic structure theory. This can avoid an intermediate step of approximate force field generation.
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"abstract": "It is shown how traditional development of theories of fluids based upon the\nconcept of physical clustering can be adapted to an alternative local\nclustering definition. The alternative definition can preserve a detailed\nvalence description of the interactions between a solution species and its\nnear-neighbors, i.e., cooperativity and saturation of coordination for strong\nassociation. These clusters remain finite even for condensed phases. The\nsimplest theory to which these developments lead is analogous to quasi-chemical\ntheories of cooperative phenomena. The present quasi-chemical theories require\nadditional consideration of packing issues because they don\u0027t impose lattice\ndiscretizations on the continuous problem. These quasi-chemical theories do not\nrequire pair decomposable interaction potential energy models. Since\ncalculations may be required only for moderately sized clusters, we suggest\nthat these quasi-chemical theories could be implemented with computational\ntools of current electronic structure theory. This can avoid an intermediate\nstep of approximate force field generation.",
"arxiv_id": "physics/9803018",
"authors": [
"Lawrence R. Pratt",
"Randall A. LaViolette"
],
"categories": [
"physics.chem-ph"
],
"doi": "10.1080/002689798167485",
"journal_ref": "Molec. Phys. 94, 909 (1998)",
"title": "Quasi-chemical Theories of Associated Liquids",
"url": "https://arxiv.org/abs/physics/9803018"
},
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