Mo_8~ⅤW_2~ⅥO_(26)(C_5H_5N)_8·2H_2O: A Novel Mixed-valence Heterometal Polyoxometalate

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A new mixed-valence heterometal cluster Mo8VW2VIO26(C5H5N)8·2H2O has been synthesized under solvothermal conditions and characterized by X-ray single-crystal diffraction, IR, UV-vis and XPS spectroscopy. The title compound crystallizes in the triclinic system, space group P1 with a = 11.708(3), b = 12.018(4), c = 13.316(4) , a = 112.184(4), β = 97.844(4), r = 110.043(3)o, V = 1551.9(8) 3 and Z = 1 at 293(2) K. The final full-matrix least-squares refinement converged to R = 0.0414 for 4460 observed unique reflections with I > 2σ(I) and w R = 0.1290 for all data(5352) and S = 1.015. In addition, its thermal stability and fluorescent property have also been investigated. A new mixed-valence heterometal cluster Mo8VW2VIO26 (C5H5N) 8.2H2O has been synthesized under solvothermal conditions and characterized by X-ray single-crystal diffraction, IR, UV-vis and XPS spectroscopy. The title compound crystallizes in the triclinic system, space group P1 with a = 11.708 (3) b = 12.018 (4) c = 13.316 (4)  a = 112.184 (4) β = 97.844 (4) r = 110.043 (3) o V = 1551.9 (8) 3 and Z = 1 at 293 (2) K. The final full-matrix least-squares refinement converged to R = 0.0414 for 4460 observed unique reflections with I> 2σ (I) and w R = 0.1290 for all data (5352) and S = 1.015. In addition, its thermal stability and fluorescent property have also been investigated.
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