One- and three-dimensional infinite arrays of Cu(I) ions exhibited by [Cu(NH3)2]Br and [Cu(NH3)Cl] in the solid state

In the solid state, [Cu(NH3)Cl] forms a three-dimensional network with each CuI ion being surrounded by three other CuI centres in a trigonalplanar fashion [CuAdegreeCu = 2.979(1)Adegree space group I213], whereas in [Cu(NH3)2]Br the cations establish infinite linear (Cu...Cu) chains spanning the crystal lattice [Cu...Cu = 2.931(1)a; monoclinic space group C2/c].