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

Abstract

Silver(I) complexes of 2,3,5,6-tetrakis(methylsulfanyl)pyridine (tmp), [Ag₃(tmp)₄][ClO₄]₃·C₃H₆O 1 and [Ag₂(tmp)₂][C₂F₅CO₂]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 π–π 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.

References

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