Sensitivity of silver(I) complexes of a pyrimidine-hydrazone ligand to solvent, counteranion, and metal-to-ligand ratio changes

摘要: Metal complexation studies were performed with AgSO3CF3 and AgBF4 the ditopic pyrimidine–hydrazone ligand 6-(hydroxymethyl)pyridine-2-carboxaldehyde (2-methylpyrimidine-4,6-diyl)bis(1-methylhydrazone) (1) in both CH3CN CH3NO2 a variety of metal-to-ligand ratios. The resulting complexes studied solution by NMR spectroscopy solid state X-ray crystallography. Reacting either or 1 1:1 ratio produced double helicate solution. This could be converted into linear complex increasing ratio; however, degree conversion depended on solvent counteranion used. Attempts to crystallize resulted crystals dimeric structure [Ag21(CH3CN)2]2(SO3CF3)4 (2), while attempts from another complex, [Ag21(SO3CF3)(CH3CN)2]2(SO3CF3)2·H2O (3). do...