Bis(1,10-phenanthroline-κ2N,N′)copper(I) chloridobis(1,10-phenanthroline-κ2N,N′) copper(II) hexacosaoxidooctamolybdate(VI) dihydrate

The title complex, [(CuCl)-Cl-II(C12H8N2)(2)](2)[Cu-I(C12H8N2)(2)](2)[Mo8O26]center dot 2H(2)O, features a centrosymmetric alpha-type octamolybdate anion, two complex copper counter-cations with Cu in oxidation states +II and +I, and two water molecules of crystallization. The Cu-II ion exhibits a distorted CuN4Cl square-pyramidal coordination, whereas the Cu-I ion is in a distorted tetrahedral CuN4 coordination. The anions, cations and uncoordinated water molecules are linked into a three-dimensional network by O-H center dot center dot center dot O and C-H center dot center dot center dot O hydrogen bonds.