conformational search of cation metal complexes

["Nada A Al-Jallal Sci. College Malaz" <najallal -x- at -x- ksu.edu.sa>]

 Dear CCl members:
 I did conformationl search on a cyclic molecule using the MM3 method which
 went ok. Then I wanted to do conformational search on the alkali metal
 complexes with this cyclic molecule but I found the the program doing the
 conformational search, CAChe, places the alkali metal cation at about 5
 angstrom from the molecule ring, although experimentlly and ab initio
 calculations predicts only 2-3 angstrom.
 My question is just to make sure the the problem is that the MM3 method is
 not able to handle cation metal complexes. Any suggestions to go around
 this problem, I mean doing conformational search of cation metal
 complexes, is most appreciated.
 Best regards,
 Nada Al-Jallal