By analyzing the IR spectrum, we found the reaction activity center is at bridge-oxygen atom. 通过红外谱图分析,发现二者的反应活性点处于多酸阴离子的桥氧上。
It is found that the bridge oxygen on is the most favorite trapping site of hole and the trapped hole orbital has the feature of the p orbital of O atom. 我们的计算表明表面的桥氧原子是空穴的最稳定俘获位,且空穴轨道具有。原子的p轨道的特征。