Tomapatanaget, Boosayarat Calix[4]arenes containing ferrocene amide as carboxylate anion receptors and sensors. [electronic resource] - Organic letters May 2003 - 1539-42 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 1523-7060 Standard No.: 10.1021/ol034355+ doi Subjects--Topical Terms: Amides--chemistryAnions--analysisBiosensing Techniques--methodsCalixarenesCarboxylic Acids--analysisElectrochemistry--methodsFerrous Compounds--chemistryMagnetic Resonance SpectroscopyMetallocenesModels, MolecularPhenols--chemistrySensitivity and SpecificityTitrimetry--methods