hexaaquocopper(II) dication (Assume the water molecules can spin - beware of a Jahn-Teller distortion!!) Reference: CCDC BENSCU: C.Couldwell, K. Prout, D. Robey, R. Taylor, F.J.C. Rossotti, Acta Crystallogr., Sect. B: Struct. Crystallogr. Cryst. Chem., Vol 34, p. 1491, 1978