The results indicate that the tungstophosphates have the Dawson structure and exhibit high catalytic activity for the epoxidation of maleicacid using H 2O 2 oxidant.

• 结果表明它们都是具有Dawson结构的杂多配合物,对顺丁烯二酸的H2O2环氧化反应具有显著的催化活性。