Publication Date:
2018-06-14
Description:
A multi-functional chemosensor 1 as silver and sulfide detector was synthesized by the combination of octopamine and 4-dimethylaminocinnamaldehyde. Sensor 1 exhibited a ratiometric fluorescence emission for Ag + from blue to sky. The binding mode of 1 and Ag + turned out to be a 1 : 1 ratio as determined using Job plot and electrospray ionization (ESI) mass spectral analyses. The sensing mechanism of 1 with silver ion was unravelled by 1 H NMR titrations and theoretical calculations. Sensor 1 also discerned sulfide by enhancing fluorescence intensity and changing colour from yellow to colourless in aqueous solution. The sensing properties of 1 toward S 2– were investigated by using ESI-mass analysis, Job plot and 1 H NMR titrations. Moreover, 1 could be used as a detector for sulfide in a wide pH range.
Keywords:
inorganic chemistry
Electronic ISSN:
2054-5703
Topics:
Natural Sciences in General
Permalink