Heteroditopic Chiral Uranyl-Salen Receptor for Molecular Recognition of Amino Acid Ammonium Salts
作者:Francesco P. Ballistreri、Andrea Pappalardo、Gaetano A. Tomaselli、Rosa M. Toscano、Giuseppe Trusso Sfrazzetto
DOI:10.1002/ejoc.201000566
日期:——
A new heteroditopic chiral uranyl-salen complex incorporating two pyrenyl groups was designed and synthesized for the recognition of ammonium salts, tetrabutylammonium (TBA) and tetramethylammonium (TMA) amino acids. UV/Vis measurements indicate the formation of 1:1 host-guest complexes with high association constants and an excellent enantiomeric discrimination between the two enantiomers of phenylalanine-TMA