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在酸性溶液中,钼酸根阴离子聚合而形成钼的同多酸根阴离子。钼同多酸的研究已有较长历史,据目前所知,从水溶液或非水溶液中离析出已知结构的主要钼同多酸根阴离子有[Mo_2O_7]~(2-)、[Mo_5O_(17)H]~(3-)、[Mo_6O_(19)]~(2-)、[Mo_7O_(24))~(6-)、[Mo_8O_(26)]~(4-)、[Mo_(18)O_(34)]~(8-)、[Mo_(36)O_(112)(H_2O)_(16)]~(8-)等。钼同多酸根阴离子结构中,除[Mo_2O_7]~(2-)及[Mo_5O_(17)H]~(3-)中含有一个或数个MoO_4四面体外,基本单元都是MoO_6八面体,这些MoO_6八面体通过角、棱或面相联而构成各种同多酸根阴离子。
In acidic solutions, the molybdate anion polymerizes to form the polyoxometalate anion of molybdenum. The research on molybdenum polyacid has a long history. As far as we know, the main molybdenum isosorbate anions known from aqueous solution or non-aqueous solution are [Mo_2O_7] ~ (2), [Mo_5O_ (17) Mo 3 O 6 Mo 4 O 4 Mo 2 O 6 Mo 6 O 6 2 MoO 6O 4 MoO 6O 4 MoO 6O 4 MoO 6O 4 MoO 6O 4 MoO 6O 4 MoO 6O 4 MoO 6O 4 MoO 6O 4 MoO 6O 4 MoO 6O 4 MoO 6O 6 MoO 6O 4 MoO 6O 4 MoO 6O 4 MoO 6O 3 MoO 6O 3 (34)] ~ (8 -), [Mo_ (36) O_ (112) (H_2O) _ (16)] to (8-) and the like. In molybdenum isopolyanions, the basic units are all MoO_6 octahedra with one or more MoO_4 tetrahedra in [Mo_2O_7] ~ (2-) and [Mo_5O_ (17) H] Octahedral through the corner, edge or surface associated with a variety of polyoxometalate anion.