CCL:G: analytic Coulomb and Exchange integrals for 2-dimensional Gaussian functions confined to a plane



Hi Ulf,
 Thanks for your response. I'm not familiar with analytic forms for the 1/r
 the anisotropic Gaussian integrals.
 Do you have a reference for these?
 Sincerely,
 Tom
 On Wed, Sep 2, 2015 at 12:54 AM, uekstrom#%#gmail.com uekstrom#%#gmail.com <
 owner-chemistry],[ccl.net> wrote:
 >
 > Sent to CCL by: "uekstrom=-=gmail.com" [uekstrom=-=gmail.com]
 > If you want the 1/r form you can take the expressions for anisotropic
 > gaussian integrals and take the planar limit, but I am not sure that
 > you will end up with a closed expression, there might be one integral
 > that you have to approximate. The log r integrals can be easily
 > computed by a 2d fft.
 >
 > Regards,
 > Ulf>
 >
 >