The cif that you want is attached (you're welcome).  I get most cif files through paid access to the ICSD.  Sometimes, cif files will be published as SI.  Often times, you must enter the crystal information/atomic parameters yourself however.  This is usually a manageable task.

The Crystallography Open Database is my goto source for structure data (http://www.crystallography.net/cod/ ). COD is an open-access collection of crystal structures of organic, inorganic, metal-organic compounds and minerals. It is searchable, every entry is fully documented, and it is free.