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Karplus-type equations for 1J(X-Y) in molecules HmX-YHn: (X, Y = N, O, P, S)
Authors:Del Bene Janet E  Elguero José
Abstract:Karplus-type equations are derived for the variation of one-bond X-Y coupling constants 1J(X-Y) as a function of dihedral angle for molecules HmX-YHn, for X, Y, = 15N, 17O, 31P, and 33S. Coupling constants were obtained from ab initio EOM-CCSD calculations, with all terms evaluated. The relative orientation of lone pairs appears to be a primary factor determining the dependence of 1J(X-Y) on the dihedral angle.
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