文摘
A novel tripodal ligand L that only has a syn conformer has been designed and synthesized. Different Ag3L2 metallocages can be effectively assembled from such concave ligands and different Ag(I) salts. ESI-MS research indicates that a Ag3L2 metallocage can encapsulate different anions selectively, in which the encapsulation capacity is as follows: NO3– > ClO4– > SO42–; moreover, selective encapsulation of NO3– from a mixture of NO3– and ClO4– has been observed.