A polymeric silver thiosaccarinate complex with a two-dimensional triply entangled mesh and argentophilic interactions

MARIANA DENNEHY; EMILIA HALAC; FERMIN DELGADO; RICARDO BAGGIO; FERMIN DELGADO; RICARDO BAGGIO; ELEONORA FREIRE; ELEONORA FREIRE; MARIANA DENNEHY; EMILIA HALAC

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS

WILEY-BLACKWELL PUBLISHING, INC

Lugar: Londres; Año: 2016 vol. 72 p. 572 - 577

0108-2701

Silver(I) complexes with sulfur-donor ligands have a broad range of pharmacologicalapplications. One of the most important factors for tuning thebiological activity is the type of donor atom and the ease of ligand replacement.Silver thiosaccharinates display a wide range of structures from mono- topolynuclear complexes.We report the synthesis, crystal structure and vibrationalspectroscopic analysis of a two-dimensional AgI?thiosaccharinate coordinationpolymer, namely poly[tris(2-4,40-bipyridine-2N:N0)bis(3-1,1-dioxo-1,2-benzisothiazole-3-thiolato-3N:S3:S3)bis(2-1,1-dioxo-1,2-benzisothiazole-3-thiolato-2S3:S3)tetrasilver(I)], [Ag2(C7H4NO2S2)2(C10H8N2)1.5]n, with 4,40-bipyridineacting as a spacer. A relevant feature of the structure is the presence of anunusually short Ag Ag separation of 2.8859 (10) A ˚ , well within the range ofargentophilic interactions and confirmed as such by Raman analysis of the lowfrequencyspectrum. From a topological point of view, the structure presentsinterpenetration in the form of a threefold entangled 2D!2D mesh (2D is twodimensional)