Ag(I) bipyridyl coordination polymers containing functional anions

Dodds, Christopher A. and Hobday, Claire L. and Kennedy, Alan R. and McKellar, Scott C. and Smillie, Katy and Walls, Aiden (2017) Ag(I) bipyridyl coordination polymers containing functional anions. New Journal of Chemistry, 41 (4). pp. 1574-1581. ISSN 1144-0546 (https://doi.org/10.1039/C6NJ03555H)

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Abstract

The single crystal diffraction structures of seven coordination polymers formed by Ag(I) and bipyridyl azine ligands are described and compared. All contain organic anions derived from intrinsically functional molecules, either Active Pharmaceutical Ingredients (API = salicylate or diclofenac) or carboxylate or sulfonate monoazo dyes. Five of the seven coordination polymers, including all those that feature API species, are found to display variations on a common structural motif, with polymeric [Ag(azine)]n chains linked into pairs through argentophillic Ag-Ag contacts supported by a pair of AgOXOAg (X = C or S) bridges. Also reported are the crystal structures of two Ag(I) complexes of sulfonated monoazo dyes, including the first such structure to feature a Ag to azo dative bond.