pi stacking interactions



 Dear CCL's;
 Is anybody who has some experiences or knoledges on the theoretical
 calculations of pi stacking interactions? I am now calculating this
 interactions for conjugated polymer system using AM1 method but the
 results seems to be a little bit doubtable. I would greatly appreciate
 it if anybody give me some advices on this matter.
 I am looking forward to haring from you soon.
 Ohyun Kwon
 Department of Chemistry
 Auburn University
 Auburn, AL 36849
 email) kwonohy $#at#$ mail.auburn.edu