新型钒取代杂多酸电荷转移盐的合成和表征

Synthesis and Properties of Two New Charge Transfer Complexes of Vanadium Substituted Molybdophosphorate with Dawson Structure

以不同钒取代的Danson结构的杂多磷钼酸为电子受体 ,N ,N 二甲苯胺为电子给体合成了两种新型电荷转移盐配合物 8C8H11N·H8P2 Mo16V2 O62 ·3C3 H7NO·5H2 O和 8C8H11N·H10 P2 Mo14 V4O62 ·4C3 H7NO。并用元素分析、红外光谱、固体漫反射电子光谱等进行了表征。结果表明 :有机电子给体与杂多酸阴离子间有强烈的相互作用 ,配合物在光激发下发生分子内的电荷转移 ,导致有机阳离子的氧化和杂多阴离子的还原。ESR测试结果显示 ,杂多阴离子的还原反应处于单电子还原阶段 ,阴离子中VV

The charge transfer salts 8C 8H 11 N·H 8P 2Mo 16 V 2O 62 ·3C 3H 7NO·5H 2O, 8C 8H 11 N ·H 10 P 2Mo 14 V 4O 62 ·4C 3H 7NO have been synthesized. Their structures and properties were investigated by elemental analysis, ICP, IR, UV vis and ESR. Spectroscopic data support the presence of an electronic interaction between electron rich aromatic organic and inorganic anions in the solid state.