Abstract
A novel terbium 2-(3-pyridyl)imidazole-4,5-dicarboxylic acid complex was incorporated into inorganic host (tetrethoxysilane, TEOS) and we developed a green luminescent hybrid material via a sol–gel reaction. The sensing abilities of this material were studied by addition of HSO 4 − , F −, Cl −, Br −, I − and CH 3COO − to aqueous suspension of the assayed bulk material. The titration of hydrogen sulfate (detection limit 10 −5 M) resulted in the reduction of the green luminescence, whereas fluoride ions (detection limit 10 −4 M) caused the luminescence changing from green to blue. We recognized that fluoride ion forms hydrogen bonding interactions with ligand. But hydrogen sulfate anion changed the green emission mainly because of its acidity.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
