SELECTIVE DETECTION OF FLUORIDE BASED ON A PYRIDINIUM<i>N</i>-PHENOLATE-CALIX[4]PYRROLE DISPLACEMENT ASSAY: AN UNDERGRADUATE LABORATORY EXPERIMENT

Mannrich, Karina; Silva, Marcelo; Nandi, Leandro G.; Nicoleti, Celso R.; Machado, Vanderlei G.

doi:10.5935/0100-4042.20140249

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“…Further work on empirical solvent scales can be found in the recently published second edition of the "Handbook of Solvents". 709 Machado et al 710 proposed a two-step experiment for a third year class in experimental organic chemistry. This experiment was based on the competition in acetonitrile between F − and compound 32 for calix [4]pyrrole (CP), 711 a receptor that is highly selective for F − .…”

Section: Discussionmentioning

confidence: 99%

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PyridiniumN-Phenolate Betaine Dyes

2014

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Introduction 10429 2. Historical Contextualization 10431 3. Synthesis of Pyridinium N-Phenolate Dyes 10433 4. Solvatochromic Properties of Pyridinium N-Phenolate Dyes 10435 4.1. X-ray Crystallographic Studies of the Molecular Structures of Pyridinium N-Phenolate Dyes 10437 4.2. Quantum Chemical Calculations Involving Pyridinium N-Phenolate Dyes 10438 4.3. The E T (30) and E T N Solvent Polarity Scale 10440 4.4. Multiparametric Approaches to the Analysis of the E T (30) and E T N Scale 10441 5. Secondary Solvatochromic Pyridinium N-Phenolate Dyes 10442 6. Investigation of the Physical Properties of Room-Temperature Ionic Liquids 10443 7. Thermosolvatochromism of Pyridinium N-Phenolate Dyes 10450 8. Halochromism of Pyridinium N-Phenolate Dyes 10451 9. Piezosolvatochromism of Pyridinium N-Phenolate Dyes 10452 10. Pyridinium N-Phenolate Dyes in the Investigation of Solvent Mixtures 10453 11. Application of Pyridinium N-Phenolate Dyes in the Construction of Chromogenic Chemosensors 10455 11.1. Chirosolvatochromism of Pyridinium N-Phenolate Dyes 10456 11.2. Chromoionophores 10456 11.3. Chromogenic Chemosensors for Anionic Species 10457 11.4. Chromogenic Chemosensors for Neutral Analytes 10458 12. Pyridinium N-Phenolate Dyes as Probes To Measure the Polarity of Solid Surfaces 10459 13. Pyridinium N-Phenolate Dyes in the Study of Microheterogeneous Systems 10460 13.1. Investigation of Surfactants in Aqueous and Organic Media 10462 13.2. Pyridinium N-Phenolate Dyes in the Investigation of Cyclodextrins in Solution 10463 13.

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Section: Discussionmentioning

confidence: 99%

“…Machado et al proposed a two-step experiment for a third year class in experimental organic chemistry. This experiment was based on the competition in acetonitrile between F – and compound 32 for calix[4]pyrrole (CP), a receptor that is highly selective for F – .…”

mentioning

confidence: 99%