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inorganic compounds
Pentasodium dibismuth arsenate bis(diarsenate) has been synthesized by solid-state reaction and characterized by single-crystal X-ray diffraction. The structure is a three-dimensional framework comprising distorded BiO6 octahedra, As2O7 groups and AsO4 tetrahadra sharing corners. Along the c axis, the structure exhibits large tunnels where Na+ cations are located.