Coordination-Driven Self-Assembly of Macrocycles and 1D or 2D Coordination Polymers Using Heteroditopic Pyridyl-Carboxylate Ligands: The Case Study of 5-[(E)-2-(3-Pyridyl)-1-Diazenyl]-2-Hydroxybenzoate in Combination with {R_nSn} (n = 2 and 3)

Pro-ligand 5-[(E)-2-(3-pyridyl)-1-diazenyl]-2-hydroxybenzoic acid, H′HLmeta, was employed for the synthesis of four organotin(IV) complexes, using suitable tri- and diorganotin (IV) precursors, [nBu3Sn(HLmeta)]n (1), [Bz3Sn(HLmeta)]n·C6H5CH3 (2), [Ph3Sn(HLmeta)]4·C6H5CH3 (3), and {[nBu2Sn(Lmeta)]2}n·2nDMSO (4). The coordination behavior of compounds 1–3 in solution was judged from the results of the 119Sn NMR spectroscopic characterization,...