Abstract
Abstract The selective fluorescence sensors are used for the analysis of toxic pollutants in the environment. In this study, phenol dansyl amide (PDA) was prepared as highly stable fluorescence ligand by using nucleophilic substitution reaction. Its interaction with eighteen different cations including Hg2+ and series of anions were investigated by using UV-visible and fluorescent spectrophotometry. However, PDA significantly indicated high sensitivity and selective quenching effect towards mercury ion. Furthermore, Density Functional Theory (DFT) along with the B3LYP method was implemented to explore minimum energy complex and fluorescence mechanism. The computed results revealed that among four possible optimized complexes of PDA and Hg+ ion, the first complex (PDA-Hg2+–I) was observed to be the most stable complex with the estimated energy difference of 8.91 kcal/mol and intermolecular charge transfer mechanism was observed in the same complex by HOMO and LUMO computation.
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.
