Abstract
AbstractRational self‐assembly of the anti‐inflammatory drug olsalazine (H4osa) with a cobalt salt in the presence of linear bidentate ligands yields two novel metal–drug complexes[Co(H2osa)(bpp)] (1) and [Co2(osa)(bpy)2(H2O)4] (2) [bpp = 1,3‐bis(4‐pyridyl)propane, bpy = 4,4′‐bipyridine]. Their structures were determined by single‐crystal X‐ray diffraction and further characterized by elemental analysis, IR spectroscopy, X‐ray powder diffraction, and thermogravimetric analysis (TGA). Compound 1 displays a new 2D → 3D parallel polycatenation of undulating (4,4) layers, whereas 2 exhibits an unusual 2D → 3D inclined polycatenation of (6,3) layers. To the best of our knowledge, they represent the first examples of metal–drug complexes that have both polycatenane and meso‐helix characteristics. The magnetic properties of 1 and 2 have been studied by measuring their magnetic susceptibility in the temperature range of 2–300 K.
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