{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,30]],"date-time":"2026-01-30T21:51:08Z","timestamp":1769809868360,"version":"3.49.0"},"reference-count":39,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2004,9,7]],"date-time":"2004-09-07T00:00:00Z","timestamp":1094515200000},"content-version":"vor","delay-in-days":3598,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Comput Chem"],"published-print":{"date-parts":[[1994,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>A method is presented for calculating the total electrostatic interaction energies between molecules from <jats:italic>ab initio<\/jats:italic> monomer wave functions. This approach differs from existing methods, such as Stone's distributed multipole analysis (DMA), in including the short\u2010range penetration energy as well as the long\u2010range multipolar energy. The monomer charge densities are expressed as distributed series of atom\u2010centered functions which we call Gaussian multipoles; these are analogous to the distributed point multipoles used in DMA. Our procedure has been encoded in the GMUL program. Calculations have been performed on the formamide\/formaldehyde complex, a model system for N\uf8ffH \u2026\ufe01 O hydrogen bonding in biological molecules, and also on guanidinium\/benzene, modeling amino\/aromatic interactions in proteins. We find that the penetration energy can be significant, especially in its contribution to the variation of the electrostatic energy with interaction geometry. A hybrid method, which uses Gaussian multipoles for short\u2010range atom pair interactions and point multipoles for long\u2010range ones, allows the electrostatic energies, including penetration, to be calculated at a much reduced cost. We also note that the penetration energy may provide the best route to an atom\u2013atom anisotropic model for the exchange\u2010repulsion energy in intermolecular potentials. \u00a9 1994 by John Wiley &amp; Sons, Inc.<\/jats:p>","DOI":"10.1002\/jcc.540151102","type":"journal-article","created":{"date-parts":[[2005,1,2]],"date-time":"2005-01-02T00:57:39Z","timestamp":1104627459000},"page":"1187-1198","source":"Crossref","is-referenced-by-count":74,"title":["Gaussian multipoles in practice: Electrostatic energies for intermolecular potentials"],"prefix":"10.1002","volume":"15","author":[{"given":"Richard J.","family":"Wheatley","sequence":"first","affiliation":[]},{"given":"John B. 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