Highly sensitive and selective turn-on fluorescent chemosensor for Pb2+ and Hg2+ based on a rhodamine-phenylurea conjugate.
A novel easily available turn-on fluorescent chemosensor RPU based on a rhodamine-phenylurea conjugate was synthesized, which showed highly selective and sensitive recognition toward Pb(2+) in CH(3)CN and Hg(2+) in aqueous media over a wide range of tested metal ions with remarkably enhanced fluorescent intensities and also clear color changes from colorless to pink.
Hu
Zhi-Qiang
ZQ
College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China. huzhiqiang@iccas.ac.cn
Lin
Cun-sheng
CS
Wang
Xiao-Ming
XM
Ding
Lei
L
Cui
Cun-Li
CL
Liu
Shu-Feng
SF
Lu
Hai Yan
HY
D005456:Fluorescent Dyes / Q000737:chemistry*; D007854:Lead / Q000032:analysis*; D008628:Mercury / Q000032:analysis*; D010671:Phenylurea Compounds / Q000737:chemistry*; D012235:Rhodamines / Q000138:chemical synthesis / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet
D005456:Fluorescent Dyes; D010671:Phenylurea Compounds; D012235:Rhodamines; D007854:Lead; D008628:Mercury