What is the structure of cupraammonium ion?

The solid state salt of tetraamminecopper(II) sulfate contains the [Cu(NH₃)₄H₂O]²⁺, which has a square pyramidal molecular geometry. The bond length between the atoms in the crystal are measured using X-Ray cryatallography ; the Cu-N and Cu-O distances are about 210 and 233 pm. Cu(NH₃)The correct concentrations of ammonia and copper sulfate solution can be determined by colorimetry. The combination of the correct concentrations will produce the highest absorbance read out on the colorimeter and as a result the formula of the complex can be verified.