Garcias-Morales, Cesar published the artcileSynthesis and physicochemical characterization of Schiff bases used as optical sensor for metals detection in water, Computed Properties of 1455-77-2, the main research area is synthesis physicochem characterization Schiff base optical sensor metal detection.
In this work, chem. mechanic synthesis of six imines is reported, chem. structure and optical characterization is described. The imines 3a-3f were evaluated as colorimetric chem. sensors of metals: Ba2+, Co2+, Fe2+, Mg2+, Ni2+, Pb2+, Zn2+, Cd2+, Hg2+, Cu2+, Sn2+ and Cs+ where 3e being a highly selective colorimetric chem. sensor for Cu2+. The limit detection of the sensor was determined through the titration, which turned out to be 4.9 x 10-6 M with a Ka of 8.264 x 103 M-1. Also, the interference of detection in a mixture of metals was studied. Finally, by the use of IR, NMR, and DFT calculations, the structure of the 3e + M complex formed, and the phenomenon responsible for the color change was determined Finally, a possible relationship between the selectivity to metal ions and the HOMO energy levels of the mols. is proposed, being a basis for the design of smart organic sensors
Journal of Molecular Structure published new progress about Colorimetric sensors. 1455-77-2 belongs to class isoquinoline, name is 3,5-Diamino-1,2,4-triazole, and the molecular formula is C2H5N5, Computed Properties of 1455-77-2.
Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem