CYCLODODECANE-KAPPA-N-4)(THIOCYANATO-S)COPPER(II)] DIAQUATETRAKIS-(ISOTHIOCYANATO-N)CALCATE(2-) DIHYDRATE

The Ca-II ion of the title complex, [Cu(SCN)(C8H20N4)](2)-[Ca(NCS)(4)( H2O)(2)]. 2H(2)O, is situated at an inversion center. The coordination geometry around the Cu-II ion is a symmetrical square pyramid with th e tetraamine N atoms equatorial and thiocyanato S atom axial. The four donor N atoms of the macrocyclic ligand form a buckled plane, with th e Cu-II ion lying 0.553(1) Angstrom out of this plane towards the thio cyanato soup. Hydrogen bonds between the water molecules and thiocyana to groups help stabilize the crystal structure. A water molecule binds the Cu-II complex and the Ca-II complex together through hydrogen bon ds.