The double polyphosphate CsMn(PO3)(4) was prepared by crystallization from
molten polyphosphoric acids containing cesium and manganese cations, and it
s crystal structure was determined: monoclinic cell, sp. gr. P2(1), Z = 2,
a = 5.212 Angstrom, b = 13.581 Angstrom, c = 7.394 Angstrom, beta = 102.11
degrees. This compound has no structural analogs.