Cvk. Sharma et al., SIMPLE ROUTES TO SUPRAMOLECULAR SQUARES WITH LIGAND CORNERS - 1 1-AG-I-PYRIMIDINE CATIONIC TETRANUCLEAR ASSEMBLIES/, Chemical communications, (2), 1998, pp. 215-216
Simple, tetranuclear cationic supramolecular squares with ligands at t
he corners can be constructed using the geometry of the pyrimidine lig
and and the directional tendencies of Ag-I coordination; the 1:1 Ag-I:
pyrimidine squares have an open channel structure which facilitates se
lective ion exchange of pertechnetate over nitrate.