CCL:G: DFT, Broken-symmetry on MOF



Respected computational chemists,

I am a beginner at computational chemistry.
 
I want to perform a broken-symmetry calculation in order to find the exchange interactions in my Dy-MOF(metal-organic frameworks) Using gaussian09 or ORCA or ADF. I tried for a Di-nuclear complex but i dont get how to do the same for a MOF, should i use the assymetric unit only or more number of atoms somehow?

please help! Thanks in advance


Vijay Singh Parmar
Department of Chemistry 
Contact: +91-9691888500
IISER Bhopal
Bhouri