Modulation of metal recognition by a novel calix[4]arene bearing two bipyridine units as a molecular gate.
[reaction: see text] A novel multiregulation system of ion recognition was constructed by utilizing a molecular gate. Interaction between the host and an Ag(+) is controlled with an Na(+) ion.
Nabeshima
Tatsuya
T
Department of Chemistry, University of Tsukuba, Ibaraki 305-8571, Japan. nabesima@chem.tsukuba.ac.jp
Saiki
Toshiyuki
T
Sumitomo
Keiko
K