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Ba 44 Cu 48 (CO 3 ) 6 O 87.9 : The Structure of “BaCuO 2 ” from Simultaneous X‐ray and Neutron Powder Diffraction

1993; Wiley; Volume: 32; Issue: 10 Linguagem: Inglês

10.1002/anie.199314541

1521-3773

Miguel Á. G. Aranda, J. Paul Attfield,

Inorganic Fluorides and Related Compounds

“BaCuO 2 ” is not a simple ternary oxide but a complex oxocarbonate. It is a common component of superconducting oxocuprates. The complete elucidation of the structure by simultaneous X‐ray and neutron powder diffraction on samples of “BaCuO 2 ” gave a statistically disordered carbonate group at the heart of the structure and resulted in the composition of this supposed oxide given in the title.