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- Title
Synthesis of 4-nitrophenylthiosemicarbazone of salicylaldehyde and its colorimetric anion recognition properties.
- Authors
Hu, Jing-Han; Yan, Nong-Ping; Chen, Juan-Juan
- Abstract
An efficient colorimetric anion sensor, N4-nitrophenylthiosemicarbazone of salicylaldehyde, behaves with a good selectivity and sensitivity in the recognition for F- anions by naked eye observations and UV-Vis spectral changes in DMSO. The colour of the solution containing the sensor had an obvious change from colourless to purple only after the addition of F- in DMSO while other anions did not cause obvious colour changes. The sensor reacted with F- to form a stable complex and the association constant Ka is calculated as 1.415×104 M-1.
- Subjects
COLORIMETRY; ANIONS; DETECTORS; HYDROGEN bonding; FLUORIDES; ULTRAVIOLET radiation
- Publication
Journal of Chemical Research, 2012, Vol 36, Issue 10, p619
- ISSN
1747-5198
- Publication type
Article
- DOI
10.3184/174751912X13463433858357