Highly sensitive and selective turn-on fluorescent and chromogenic probe for Cu2+ and ClO- based on a N-picolinyl rhodamine B-hydrazide derivative.
A new rhodamine B-based dual-function chromo- and fluorogenic probe for Cu(2+) and ClO(-) has been designed, synthesized, and characterized. The probe comprises a spectroscopic unit of rhodamine B and a Cu(2+)-specific chelating unit of pyridinecarboxamide as well as a ClO(-)-specific reactive moiety of diacylhydrazine, and is a highly selective and extremely sensitive fluorescent and colorimetric sensor for Cu(2+) and ClO(-) in different pH conditions. Compared with the reported probes for Cu(2+) or ClO(-), this is the first chemosensor based on a small molecule that can detect both Cu(2+) and ClO(-), respectively, at 1 nM level.
Liu
Yunlong
Y
School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China.
Sun
Yue
Y
Du
Jun
J
Lv
Xin
X
Zhao
Yun
Y
Chen
Maliang
M
Wang
Pi
P
Guo
Wei
W
D002413:Cations, Divalent / Q000737:chemistry; D002712:Chlorides / Q000737:chemistry*; D002863:Chromogenic Compounds / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000737:chemistry*; D015394:Molecular Structure; D010847:Picolines; D012235:Rhodamines / Q000737:chemistry*
D002413:Cations, Divalent; D002712:Chlorides; D002863:Chromogenic Compounds; D005456:Fluorescent Dyes; C556472:N-picolinyl rhodamine B-hydrazide; D010847:Picolines; D012235:Rhodamines; D003300:Copper; C029773:rhodamine B; C001599:chlorite