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近年来,含有Keggin结构的杂多酸以其优异的结构可修饰性及其在催化、功能材料和医药等方面的潜在应用而引起人们广泛的研究兴趣。在这一领域中,众多过渡金属取代的Keggin型杂多化合物,尤其是含有钒和铝的多金属氧酸盐由于其独特的电磁特性及结构特点而倍受关注。但迄今为止,只有少数带帽Keggin型结构的杂多阴离子被报道。这些Keggin阴离子通常具有低的V/Mo
In recent years, heteropolyacids containing Keggin structure have aroused extensive research interests due to their excellent structural modifiability and their potential applications in catalysis, functional materials and medicine. In this field, many transition metal-substituted Keggin-type heteropoly compounds, especially vanadium and aluminum-containing polyoxometallates, have attracted much attention because of their unique electromagnetic and structural properties. However, to date, only a few heteropolyanions with a Keggin-type structure have been reported. These Keggin anions generally have a low V / Mo