Diamminecopper(I) divanadate(IV,V).

The crystal structure of diamminecopper(I) divanadate(IV,V), or poly[di-amminecopper(I) [tri-μ3-oxido-di-μ2-oxido-divanadium(IV,V)]], {[Cu(NH3)2]V2O5} n , has been determined by single-crystal X-ray diffraction. The compound crystallizes in the monoclinic space group P21/c and consists of infinite {V2O5}- layers expanding parallel to the bc plane built from edge- and corner-sharing [VO5] square pyramids. Almost linear diamminecopper(I) cations, [Cu(NH3)2]+, are located between the vanadate layers and are linked to the framework through N-H⋯O hydrogen bonds.