二茂铁磷钼钒杂多酸电荷转移配合物的合成、表征及催化性能

Synthesis,characterization and catalytic activity of the charge transfer salt between ferrocene and phosphomolybdate vanadium

以Keggin结构的钒取代的磷钼酸为电子受体,二茂铁为电子给体合成了3种二茂铁磷钼钒杂多酸电荷转移配合物[Fe(C5H5)2]3H[PMo11VO40].6H2O、[Fe(C5H5)2]3H[PMo10V2O40].3H2O和[Fe(C5H5)2]3H[PMo9V3O40].8H2O,用元素分析、IR光谱、UV光谱、XRD等方法对其进行了表征,结果表明:二茂铁与杂多阴离子之间发生了电荷转移形成了新的电荷转移配合物,配合物仍保持有杂多阴离子的Keggin结构以及二茂铁的结构。催化活性实验表明,配合物对乙酸异丁酯合成反应具有良好的催化性能。

Two new charge-transfer salts[Fe（C5H5）2]3H-[PMo11VO40]and[Fe（C5H5）2]3K[PMo11VO40]have been prepared in aqueous from ferrocene and vanadate substituted molybdophosphoric with keggin structure.The samples were characterized by elemental analysis,IR,UV and XRD,The resules showed that charge transfer between ferrocene and polyoxometalate anion has taken place and formed charge-transfer sate,The polyoxometalate anion still remains its Keggin and Ferrocene structure in charge-transfer sate.Experiments on catalytic synthesis of isobutyl acetate showed that the charge-transfer sate exhibited good catalytic properties.