Publication | Closed Access
Two Thiourea-based Colorimetric Sensors for Anions: Structure and Binding Study
32
Citations
0
References
2004
Year
Chemical MeasurementEngineeringPhotochemistryBinding StudyOptical SensorColorimetryOrganic ChemistryAnalytical ChemistryAnion SensingChemistryRigid ArmsMolecular RecognitionColorimetric Thiourea-based ChemsensorsMolecular ModelingChemical SensorCation SensingBiophysicsBinding Abilities
Two colorimetric thiourea-based chemsensors with two relatively rigid arms, 2A and 2B, were synthesized. Their binding abilities with halide anions, AcO−, [Formula: See Text] were studied by UV-Vis spectroscopy in DMSO. The two sensors showed a notable selective color response to F− anion from colorless to green-yellow in recognition. The structures of the two sensors and their binding behaviors are discussed. The association constants were calculated by nonlinear fittings of 1:1, 1:2 or 1:1 to 1:2.