Subject: pi-pi-interaction ?

From: Michael Neuber <[email-masked]>
Date: Tue, 05 Nov 1996 15:29:11 MET

Dear all,
    in  "Semiempirical Molecular Orbital Methods" (Rev.Comp.Chem.
    2(1990)pp 45-81)    J.J.P. Stewart describes 'strong and weak points 
    of NDDO semiempirical methods'.
    What I am interested in is whether there is any further reference
    regarding the value of semiempiric methods (AM1, PM3, also ZINDO-1)
    especially for the description of intermolecular pi-pi interaction
    of aromatic molecules.
    I would appreciate any hint on reported results or experience with 
    that, will summarize if it seems appropriate.

    Greetings
    Michael Neuber
    @ Berlin