高等学校化学研究 ›› 2013, Vol. 29 ›› Issue (4): 642-646.doi: 10.1007/s40242-013-3002-1
CHENG Peng-fei1,2, XU Kuo-xi1,2, YAO Wen-yong1, KONG Hua-jie1, KOU Li1, MA Xiao-dan1, WANG Chao-jie1,2
CHENG Peng-fei1,2, XU Kuo-xi1,2, YAO Wen-yong1, KONG Hua-jie1, KOU Li1, MA Xiao-dan1, WANG Chao-jie1,2
摘要:
We reported four fluorescent chemosensors containing tryptophan units. The fluorescence spectrum titration experiments suggest that chemosensors 1, 2, 3 and 4 are highly selective for Cu2+ and Fe3+ over Li+, Na+, K+, Co2+, Zn2+, Ni2+, Hg2+ and Cr3+ via forming complexes with Cu2+ or Fe3+, which is confirmed by dramatical quench of fluoreseence in aqueous solution at pH 7.4, thus making all the chemosensors suitable for Cu2+ and Fe3+ fluorescent sensors.