Use of auxiliary functions in calculation of multicenter electronic attraction, electric field and electric field gradient integrals of screened and nonscreened Coulomb potentials over noninteger n Slater orbitals

Guseinov I., Mamedov B.

CHEMICAL PHYSICS, vol.312, pp.223-226, 2005 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 312
  • Publication Date: 2005
  • Doi Number: 10.1016/j.chemphys.2004.12.004
  • Journal Name: CHEMICAL PHYSICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.223-226
  • Çanakkale Onsekiz Mart University Affiliated: No

Abstract

By the use of complete orthonormal sets of Psi(alpha)-exponential type orbitals (Psi(alpha) - ETOs, alpha = 1,0,-1,-2,..)and auxiliary functions Q(NN')(q) introduced in our previous paper [I.I. Guseinov, J. Phys. B, 3 (1970) 1399] the multicenter electronic attraction, electric field and electric field gradient integrals of nonscreened and Yukawa-like screened Coulomb potentials over integer and noninteger n Slater type orbitals are evaluated. These integrals are expressed through the two-center overlap integrals with the same screening constants and the new central and noncentral potential functions depending upon the auxiliary functions Q(NN')(q). The convergence of the series is tested by calculating concrete cases. (c) 2004 Elsevier B.V. All rights reserved.