A new imidazolium acridine derivative as fluorescent chemosensor for pyrophosphate and dihydrogen phosphate

作者：Kim Sook Kyung; Seo Dongwon; Han Su Jung; Son Guiyoup; Lee In Ja; Lee Chongmok; Lee Kap Duk; Yoon Juyoung^*

来源：Tetrahedron, 2008, 64(27): 6402-6405.

DOI：10.1016/j.tet.2008.04.085

A new acridine derivative bearing two imidazolium groups has been synthesized. This chemosensor displayed a large fluorescent quenching effect with pyrophosphate and a unique fluorescent enhancement with H(2)PO(4)(-). The strong (C-H)(+)center dot center dot center dot X(-) hydrogen bonding between the imidazolium moieties and anions is the key interaction for the recognition. The association constant of 1 with pyrophosphate was calculated as 4.9x10(7) M(-1).

• 出版日期2008-6-30