Two-dimensional supramolecular co-ordination compounds of silver(I) with box structures

摘要

Silver(I) complexes of 2,3,5,6-tetrakis(methylsulfanyl)pyridine (tmp), [Ag_3(tmp)_4][ClO_4]_3 centre dot C_3H_6O 1 and [Ag_2(tmp)_2][C_2F_5CO_2]_2 2, have been prepared and their molecular structures determined by X-ray crystallography. In both complexes two tmp ligands are positioned face to face by two Ag atoms and form a box structure. In 1 three types of silver(I) ion are present depending on the co-ordination numbers. One tmp molecule acts as a bridge between box structures leading to a tape arrangement. The #pi#-#pi# stackings between pyridine rings give a two-dimensional network. In 2, by contrast, the silver(I) ion has a trigonal planar environment with three thioether S atoms; each tmp acts as a ligand bridging metal centres resulting in a two-dimensional sheet.