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The title compound Na5H37P6Mo18O90 1 (Mr=1658) was synthesized under hydrothermal condition and its crystal structure was determined by X-ray diffraction. It crystallized in the monoclinic system, space group P21 with a =14.957(1), b =16.535(1), c = 16.159(1)?β=108.586(2)°, V=3787.85?, Dc =3.040g/cm3, Z=2,μ(MoK)=3.17mm-1, F(000)=3242. The final R and wR are 0.0500 and 0.1535 for 6643 observable reflections with I≥2?I), respectively. The result of structure analysis indicates that [Na(HPO4)2(PO4)4-Mo18 O49]5-anions 2 in 1 has the symmetry of C2V, in which each MoVIO6 octahedron is connected to adjacent PO4 tetrahedra through corner-sharing and to adjacent octahedra through edge-sharing or corner-sharing.
It crystallized in the monoclinic system, space group P21 with a = 14.957 (1), b = 16.535 (1 ), c = 16.159 (1)? β = 108.586 (2) °, V = 3787.85 ?, Dc = 3.040 g / cm3, Z = 2, μ (MoK) = 3.17 mm-1, F (000) = 3242. The final R and wR are 0.0500 and 0.1535 for 6643 observable reflections with I ≥ 2 · I), respectively. The result of structure analysis indicates that [Na (HPO4) 2-PO 4) 4-Mo18 O49] 5-anions 2 in 1 has the symmetry of C2V, where each MoVIO6 octahedron is connected to adjacent PO4 tetrahedra through corner-sharing and to adjacent octahedra through edge-sharing or corner-sharing.