The solvent extraction of uranium(Ⅵ) and europium(Ⅲ) from nitric acid solution was studied with picolinamide dissolved......

A hydrogen-bonded supermolecular compound [(C6H5N2O)3·Cu1.5](6H2O was syn- thesized from picolinamide and Cu(NO3)2·6H2......

Three full-substituted calix[6]arenes containing the picolinamide groups were synthesized and characterized by IR, 1HNMR......