{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,19]],"date-time":"2026-01-19T02:00:18Z","timestamp":1768788018057,"version":"3.49.0"},"reference-count":45,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2004,9,7]],"date-time":"2004-09-07T00:00:00Z","timestamp":1094515200000},"content-version":"vor","delay-in-days":4177,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Comput Chem"],"published-print":{"date-parts":[[1993,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>A procedure to represent atomic electron charge densities [L. Fernandez Pacios,<jats:italic>J. Phys. Chem.<\/jats:italic>,<jats:bold>95<\/jats:bold>, 10653 (1991);<jats:italic>J. Phys. Chem.<\/jats:italic>,<jats:bold>96<\/jats:bold>, 7294 (1992)] is here generalized to obtain simple analytical functions for potential energy contributions. Based upon suitable functions to describe atomic electron densities in a physically meaningful form, the procedure is developed to define density\u2010dependent analytical expressions for the electrostatic (classical) and exchange (quantum) potentials by means of proper approximate functionals. Calculations of correlation energies by using various density\u2010functional approaches are also performed. The whole scheme is used to represent Hartree\u2013Fock limit atomic wave functions by Clementi\u2013Roetti. This way, a set of analytically simple, nonbasis set\u2010dependent functions are defined with the aim to be further implemented in energy decomposition schemes for molecular interactions studies using atomic instead of electronic building blocks. \u00a9 1993 John Wiley &amp; Sons, Inc.<\/jats:p>","DOI":"10.1002\/jcc.540140405","type":"journal-article","created":{"date-parts":[[2005,1,2]],"date-time":"2005-01-02T01:00:06Z","timestamp":1104627606000},"page":"410-421","source":"Crossref","is-referenced-by-count":24,"title":["Analytical density\u2010dependent representation of Hartree\u2014Fock atomic potentials"],"prefix":"10.1002","volume":"14","author":[{"given":"L. 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