CCL: Complexe optimization

 Sent to CCL by: "Bonoit  Bonoit" [ablux13(a)]
 Dear CCLers,
 I would like to enquire about the optimization of complexes. I have some
 troubles to optimize the structure of a copper complexe. Each time, I
 launch the calculation, it diverges and the complexe falls apart to its
 Have anyone an idea about the methodology or keywords I might use to
 overcome this problem.
 Any help is appreciated
 Thank you in advance