Selective FL Quenching or Enhancing of Diimine Ligands by Guanine

Diimine ligand (DL) 1 significantly exhibited the fluorescence quenching upon binding to guanine. Changing at the para -substituent of the phenyl ring from the hydroxyl to bromo groups reversely enhanced the fluorescence in the presence of guanine. The reverse in the fluorescence selectivity indicat...

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Bibliographic Details
Published inJournal of fluorescence Vol. 23; no. 5; pp. 853 - 857
Main Authors Smanmoo, Srung, Kawasaki, Shinya, Tangboriboonrat, Pramuan, Shibata, Takayuki, Kabashima, Tsutomu, Kai, Masaaki
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.09.2013
Subjects
Analytical Chemistry
Biochemistry
Biological and Medical Physics
Biomedical and Life Sciences
Biomedicine
Biophysics
Biotechnology
Derivatives
Fluorescence
Fluorescent Dyes - chemistry
Guanine - chemistry
Imines - chemistry
Ligands
Molecular Structure
Short Communication
Spectrometry, Fluorescence
Diimine ligand (DLs)
Fluorescence (FL) sensor
Nitrogenous base sensor
Guanine chemical sensor
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Summary:Diimine ligand (DL) 1 significantly exhibited the fluorescence quenching upon binding to guanine. Changing at the para -substituent of the phenyl ring from the hydroxyl to bromo groups reversely enhanced the fluorescence in the presence of guanine. The reverse in the fluorescence selectivity indicated the profound effect of the substituent at the para -position of the phenyl ring. The simple synthesis of DL 1 and DL 2 with good selectivity for guanine offers these DLs as promising compounds for chemosensors of other guanine derivatives. Figure ᅟ
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ISSN:1053-0509
1573-4994
DOI:10.1007/s10895-013-1216-8