Abstract: | About Ternary Oxocuprates. X. On Ba2Cu3O4Cl2 The preparation of Ba2Cu3O4Cl2 and results by single crystal X-ray methods are described (a = 5.517, c = 13.808 Å; Space group D–I4/mmm). A so far unknown arrangement of square coordinated Cu2+ was detected. The Cu2+/O2?-squares are partly completed to a distorted octahedral coordination by two Cl?. |