Darstellung,Struktur und Eigenschaften von Kupfer(II)-Carbonat

Synthesis, Structure, and Properties of Cupric Carbonate CuCO₃ can be prepared from azurite, malachite or CuO by reaction with CO₂ using a pressure of 20 kb at a temperature of 500°C. The compound is monoclinic, its spacegroup is Pa? C (Nr. 7); the lattice constants are: a = 6.092, b = 4.493, c = 7.030 Å, β = 101.34°. From the structure determination follows the coordination number 5 with a distorted square pyramid of oxygen around the metal. The IR sepctrum ist explained on the basis of site-symmetry considerations.