cage receptor, which combines 1,8‐anthracene diacarboxamide subunit and a polyammonium azamacrocycle, is reported. Bearing both the hydrogen bond donor and the acceptor binding sites, the receptor is able to bind phosphate selectively under neutral (pH 7.2) aqueous conditions. The recognition events for phosphate and dicarboxylates are accomplished by a fluorescence enhancement in the anthracene emission
报道了一种新的
酰胺基胺笼型受体,该受体结合了1,8-
蒽二羧
酰胺亚基和一个聚
氮杂大环胺。带有
氢键供体和受体结合位点的受体能够在中性(pH 7.2)
水溶液条件下选择性结合
磷酸盐。
磷酸盐和二
羧酸盐的识别事件是通过
蒽发射中的荧光增强来实现的。实验和理论研究表明,
磷酸盐和
草酸盐显示出不同的识别模式。
磷酸盐显示出
氢键受体的特性,而
草酸盐的配位有利于受体的质子化。