Anions sensors

Novel hexakisurea and thiourea cyclotriphosphazene compounds (3–7) were synthesized. The structure of all compounds was identified using FT-IR 1H, 13C, and 31P NMR spectroscopy; MALDI-TOF MS; and elemental analysis. The optical sensor properties for anions of 3–7 were investigated using UV-Vis spectroscopy. It was determined that compounds 6 and 7 are spectrophotometric and naked eye sensors for F− and CN− anions, respectively. Sensor properties of these compounds for anions were investigated using UV-Vis spectroscopy. The stoichiometry of host–guest complexes was found to be 1:6.

12p langthannam 29-12-2021 9 0   Download

Calix[4]pyrrole derivatives with bulky substituents at their meso-positions were synthesized via mixed condensation of pyrrole with cyclohexanone and acetophenone derivatives. Anion binding studies, carried out by isothermal titration calorimetry in 1,2-dichloroethane with Cl− and CH3CO−2 anions in the form of their tetrabutylammonium salts, revealed that these new calix[4]pyrrole derivatives can bind the aforementioned anions as effectively as the unsubstituted “parent” system, octamethylcalix[4]pyrrole (1).

15p tudichquannguyet 29-11-2021 2 0   Download

A novel sensor fabrication using anionic surfactant sodium lauryl sulphate modified carbonnanotube and pencil graphite composite paste electrode (SLSMCNTPGCPE) is prepared and characterized using Field Emission Scanning Electron Microscope (FE-SEM) and Cyclic Voltammetry (CV).

9p tamynhan4 06-09-2020 13 1   Download

A new donor-π-acceptor derived from phenothiazine, namely 2-(2-((10-hexyl-10H-phenothiazin-3-yl)methylene)3-oxo-2,3-dihydroinden-1-ylidene) malononitrile (PTZON) was synthesized and fully characterized, and its potential as a fluorescent sensor for cyanide anion was investigated.

11p vijiraiya2711 27-05-2020 14 1   Download