Ortho-phenylenediamine-based open and macrocyclic receptors in selective sensing of H2PO4−, ATP and ADP under different conditions
作者:Kumaresh Ghosh、Indrajit Saha
DOI:10.1039/c2ob26995c
日期:——
Ortho-phenylenediamine-based open and macrocyclic receptors have been designed and synthesized. The open receptor 1 and the macrocyclic receptor 2 fluorimetrically distinguish H2PO4â from the other anions examined in CH3CN with appreciable binding constant values. As practical applications, they are also sensible to nucleotides in aq. CH3CN (1â:â1, v/v). The receptor 1 shows significant emission change upon complexation of ATP and ADP. ADP is selectively distinguished by a ratiometric change in emission. In contrast, the macrocyclic receptor 2, under similar conditions, shows good binding with ATP over the others.
基于正苯二胺的开放型和宏环型受体被设计和合成。开放型受体1和宏环型受体2在CH3CN中通过荧光法能够明显区分H2PO4â与其他所考察的阴离子,并具有可观的结合常数值。作为实际应用,它们在1:1(v/v)的水-CH3CN溶液中对核苷酸也表现出良好的感应。受体1在与ATP和ADP形成复合物时,荧光发射发生显著变化。ADP通过发射强度的比率变化被选择性区分。相对而言,宏环型受体2在类似条件下对ATP表现出良好的结合能力。