Metal cation-induced multifluorescence of azacrown-substituted (tetrafluorophenyl)imidazo[1,2-a]pyridine
摘要:
ortho-Azacrown-substituted (tetrafluorophenyl)imidazo[1,2-a] pyridine (2) in an acetonitrile solution emits 380 nm light in the presence of Li(+) cation and emits 460 nm light in the presence of Zn(2+), Mg(2+) or H(+) cation. In contrast, para-azacrownsubstituted analogue (1) emits three different fluorescent lights responding to Li(+), Zn(2+) or H(+) cation, respectively; 388 nm light to Li(+) cation, 433 nm light to Zn(2+) cation or 469 nm light to H(+) cation.
ortho-Azacrown-substituted (tetrafluorophenyl)imidazo[1,2-a] pyridine (2) in an acetonitrile solution emits 380 nm light in the presence of Li(+) cation and emits 460 nm light in the presence of Zn(2+), Mg(2+) or H(+) cation. In contrast, para-azacrownsubstituted analogue (1) emits three different fluorescent lights responding to Li(+), Zn(2+) or H(+) cation, respectively; 388 nm light to Li(+) cation, 433 nm light to Zn(2+) cation or 469 nm light to H(+) cation.