Palladium and gold extraction from hydrochloric solutions by calixarenes. Torgov V. 1, Kostin G. 1, Mashukov V. 1, Korda T. 1, Kalchenko V. 2, Drapailo

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Applications: 1)Smart chemical sensing system 2)Molecular scaffolds for construction of supramolecular systems 3)Catalysts for sterioselective reaction in biological system 4)Selective receptors for cations, anions and neutral molecules Calix[4]arenes-are new class of extractants. narrow rim wide rim The volume of cavity is about 10 cubic nanometers 3