Towards a unified description of the AMOB2O5 (A=K, Rb, Cs, Tl; M=Nb, Ta) family of compounds
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Single-crystal X-ray diffraction data (Mo Kalpha radiation) are used to re-refine the structure of RbNbOB2O5, rubidium niobium oxo pyroborate. The structure is refined as an incommensurate modulated structure with superspace group symmetry Pmn2(1)(0,0.4,0)s an... ...
