Re: CCL:Uss and Upp

[Taisung Lee <taisung #*at*# chem.duke.edu>]

 Hi,
    As I know, Uss and Upp are used in semiempirical methods as
 one-electron parametrical energy.  You can find them in semiempirical
 parametrization papers.
 Taisung Lee
 > Dear Colleagues;
 >
 >      Is anyone familiar with the abbreviations "Uss" and
 "Upp" as they might
 > apply to physical or quantum chemistry?  They have units of eV, and may
 refer
 > to something relating to spectroscopy, but as of this writing I haven't
 been
 > able to find any useful definitions or descriptions of "Uss" and
 "Upp".
 >
 >      Thanks in advance to all responders.
 >
 >
 > Sincerely,
 >
 > (Dr.) S. Shapiro
 > ZH, CH
 > toukie #*at*# zui.unizh.ch
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