由于钼钒磷杂多化合物具有良好的催化性能,近年来这些化合物的合成和性质研究受到化学工作者的密切注意。迄今为止,已经合成出1—11个钒原子取代的钼钒磷杂多酸的钠盐,和1—6个钒原子取代的相应的杂多酸。现在我们合成了未见报导的、含有7、8个钒原子的钼钒磷杂多酸和它的铵盐,并对它们的性质进行了研究。我们采用分步加入原料,把反应温度控制在80°—90℃之间的方法合成了钼钒磷杂 Due to their good catalytic properties, the research on the synthesis and properties of these compounds has attracted close attention by chemists. So far, 1 to 11 vanadium atom-substituted sodium salts of molybdovanadophosphate heteropolyacid and corresponding heteropolyacids substituted with 1 to 6 vanadium atoms have been synthesized. We have now synthesized an undisclosed report of heteropolymolybdophosphates and their ammonium salts containing 7,8 vanadium atoms and investigated their properties. We use step by step to join the raw materials, the reaction temperature was controlled at between 80 ° -90 ° C molybdenum vanadium phosphorus hybrid