A novel series colorimetric and off-on fluorescent chemosensors for Fe3+ based on rhodamine B derivative.
A novel series colorimetric and off-on fluorescent chemosensors (2a, 2b, 2c) were designed and synthesized, which showed reversible and highly selective and sensitive recognition toward Fe(3+) over other examined metal ions. Upon addition of Fe(3+), sensors (2a, 2b) exhibit remarkably and 2c exhibits moderate enhanced absorbance intensity and color change from colorless to pink in CH(3)OH-H(2)O(1:1, v/v). The three compounds (2a, 2b, 2c) may therefore be applicable as rhodamine-based turn-on type fluorescent chemosensors.
Phosphorus Chemical Engineering Research Center of Henan Province, Key Laboratory of Chemical Biology, Zhengzhou University, Zhengzhou, China.
Di
D
Zhang
Ruyi
R
Zou
Min
M
Wang
Meimei
M
Chai
Xubin
X
Wang
Yong
Y
Ye
Yufen
Y
Zhao
D003124:Colorimetry; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007501:Iron / Q000032:analysis* / Q000737:chemistry*; D008024:Ligands; D012235:Rhodamines / Q000737:chemistry*; D013050:Spectrometry, Fluorescence
D005456:Fluorescent Dyes; D008024:Ligands; D012235:Rhodamines; D007501:Iron; C029773:rhodamine B