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

Abstract

In the solid state, [Cu(NH₃)Cl] forms a three-dimensional network with each Cu^I ion being surrounded by three other Cu^I centres in a trigonal-planar fashion [Cu⋯Cu = 2.979(1) Å; cubic 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) Å; monoclinic space group C2/c].