Fabrications of some kinds of 2-D frameworks consisting of nanosized polyoxomolybdate anion [Mo36O112(H2O)16] via condensation processes

We succeeded to prepare novel Mo₃₆O₁₁₂(H₂O)₁₆]⁸⁻ ({Mo₃₆}) compounds by using 1,3-diamino-2-propanol (βOHC₃-DA) and 1,3,5-tris(aminomethyl)benzene (MES-TA)+1,3-diaminopropane (C₃-DA) as linkers, and determined their crystal structures. We have confirmed they have unique two-dimensional (2-D) molybdenum oxide frameworks, which are formed by condensation of {Mo₃₆}s. Side-staggered arrays of {Mo₃₆}s, connected in lying position by eight bridges per a {Mo₃₆}, are formed in the compound with βOHC₃-DA, while herringbone arrays of {Mo₃₆}s, connected in standing position by four bridges per a {Mo₃₆}, are built in the compound with MES-TA+C₃-DA. The latter compound exhibited non-stoichiometric property, and its composition and cell parameters varied depending on the relative concentration of MES-TA in the mother solution.