Fluorescence modulation in anion sensing by introducing intramolecular H-bonding interactions in host-guest adducts.
Fluorescence signaling in anion binding is modulated from quenching to enhancement by intramolecular H-bonding stabilization of anion-ionophore adducts; the intramolecular H-bonding is suggested to suppress the quenching processes otherwise possible and increase the conformational rigidity of the anionic adducts, leading to fluorescence enhancement in a selective fashion towards cyanide ion, among the various anions examined.
Chung
Yun Mi
YM
Department of Chemistry and Center for Integrated Molecular Systems, Division of Molecular and Life Science, POSTECH, San 31, Hyoja-dong, Pohang 790-784, Republic of Korea.
Raman
Balamurali
B
Kim
Dae-Sik
DS
Ahn
Kyo Han
KH
D000838:Anions / Q000138:chemical synthesis / Q000737:chemistry; D003486:Cyanides / Q000737:chemistry; D003619:Dansyl Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D005453:Fluorescence; D006860:Hydrogen Bonding; D015394:Molecular Structure; D012680:Sensitivity and Specificity; D013237:Stereoisomerism
D000838:Anions; D003486:Cyanides; D003619:Dansyl Compounds