TY - JOUR
T1 - A ratiometric fluorescent chemosensor, 1,10-phenanthroline-4,7-dione, for anions in aqueous-organic media
AU - Hirano, Junzo
AU - Miyata, Hiroyuki
AU - Hamase, Kenji
AU - Zaitsu, Kiyoshi
N1 - Funding Information:
This work was partially supported by the Research Fellowships of the Japan Society for the Promotion of Science for Young Scientists (J.H.). The authors thank Dr. Masanori Inagaki and Chisato Emura of Kyushu University for their help in IR measurements.
PY - 2007/7/9
Y1 - 2007/7/9
N2 - A new fluorescent chemosensor, 1,10-phenanthroline-4,7-dione (1), which is capable of the ratiometric sensing of anions in aqueous MeCN, was developed. Chemosensor 1 recognized an anion via two NH groups in the molecule, and showed a much higher affinity for F- than that of 4-quinolone, which binds to an anion at one NH group of the molecule. Upon binding to F-, the intensity of the emission band ascribed to the complex of 1-F- was drastically enhanced, while the emission intensity of unbound 1 gradually decreased. The changes in these two emission bands enabled the successful ratiometric sensing.
AB - A new fluorescent chemosensor, 1,10-phenanthroline-4,7-dione (1), which is capable of the ratiometric sensing of anions in aqueous MeCN, was developed. Chemosensor 1 recognized an anion via two NH groups in the molecule, and showed a much higher affinity for F- than that of 4-quinolone, which binds to an anion at one NH group of the molecule. Upon binding to F-, the intensity of the emission band ascribed to the complex of 1-F- was drastically enhanced, while the emission intensity of unbound 1 gradually decreased. The changes in these two emission bands enabled the successful ratiometric sensing.
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U2 - 10.1016/j.tetlet.2007.05.045
DO - 10.1016/j.tetlet.2007.05.045
M3 - Article
AN - SCOPUS:34249999730
SN - 0040-4039
VL - 48
SP - 4861
EP - 4864
JO - Tetrahedron Letters
JF - Tetrahedron Letters
IS - 28
ER -