The title complex has been synthesized by the reaction of silicotungstic acid, 1,10-phenanthroline (phen) monohydrate and cupric acetate. The crystal structure belongs to triclinic system, space group P (1) over bar with a=1.15846(15) nm, b=1.6588(2) nm, c=1.6644(2) nm, alpha=82.090(2)degrees, beta=76.001(2)degrees, gamma=86.531(2)degrees, and V=3.0726(7) nm(3), D-c=3.887 g(.)cm(-3), Z=2, F(000)=3196. R-1=0.0867, wR(2)=0.1858. The structure shows that the copper(II) atom is coordinated with two nitrogen atoms from the one phen and three oxgygen atoms from three water, forming a distorted squar...
