Synthesis, structure, stability and antimicrobial activity of a ruthenium(II) helicate derived from a bis-bidentate “click” pyridyl-1,2,3-triazole ligand

A [Ru2L3]4+ ruthenium(II) triply-stranded helicate was synthesized from a bis-bidentate “click” pyridyl-1,2,3-triazole ligand and RuCl3 in good yield (58%). The helicate was characterized by elemental analysis, IR, UV–Vis, 1H, 13C and 1H DOSY NMR spectroscopies and the molecular structure confirmed using X-ray crystallography. In contrast to similar, previously studied, [Fe2L3]4+ helicates the more kinetically inert [Ru2L3]4+ system proved...