On the relationship between the structures of Cu(II) complexes and the course of their thermal decomposition: XV. Thermal decomposition of complexes Cu4O(Cl+Br)6(OPPh3)4

Thermal decomposition of [Cu40(CI+Br)6(OPPh3)4], starts at temperatures about 200~ The decomposition proceeds in several steps. The intermediate formed in the first decomposition step (weight loss 2-4%) is a new crystalline phase with slightly different structure but with preserved central unit Cu40. The only crystalline phases found in the further decomposition products was CuBr in all cases when the bromine atoms were present, the presence of CuC1 was only observed at the decomposition of the hexachlorocomplex.