单缺位Keggin结构多酸阴离子-稀土-ATP化合物的合成、表征及抑菌活性

Synthesis of the compound composed monolacunary Keggin structure polyoxometalates-rare earth-ATP,characterization and antibacterial activities

在常规水浴条件下,以单缺位Keggin结构的多酸阴离子(α-SiW11O39)8-为构筑模块,以稀土金属离子为桥,与C10H14N5H2O13P3(ATP)分子连接合成新型的多酸超分子化合物.通过XPS、元素分析、红外光谱、31P NMR的表征及TG曲线的分析,给出所合成化合物的分子结构式为K2LnH2[SiW11O39Ln(ATP*)].11H2O(Ln=La3+,Ce3+,Pr3+,Nd3+,Sm3+,Eu3+,Er3+).抑菌实验表明该类化合物具有很强的抑菌活性.

A new series of supramolecular polyoxometalate hybrid materials based on Keggin POM clusters （a-SiW11O39）^8- as building block and ATP molecules by rare earth ions as linkers have been convention water bath synthesized. These compounds were characterized＇by XPS, elemental analysis, IR, ^31P NMR and TG,K2LnH2 [ SiW11 O39 Ln （ATP^＊ ） ]·11H2O （Ln = La^3＋, Ce^3＋ , Pr^3＋ , Nd^3＋, Sm^3＋, Eu^3＋ , Er^3＋ ） in the routine solution. The results indicated that these compounds have stronger antibacterial activities.