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From: Michael Neuber <neuber&$at$&exp.bessy.de>
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Subject: pi-pi-interaction ?


  
    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
    : at : Berlin