Intramolecular short hydrogen bonding. Synthesis and spectroscopic studies of pyridine N-oxide diadducts: X-ray structure of [(2,6-(CH3)2pyNO)2−H][AuCl4]

catena-Poly[[[aqua[3-(2-pyridylsulfanyl)propionatoN-oxide-κO1]copper(II)]-μ-[3-(2-pyridylsulfanyl)propionatoN-oxide-κ3O3:O1,O1′] dihydrate]

“…The key step in the design of coordination polymers is to select suitable multidentate bridging ligands and spacers. Many pyridine-based carboxylate ligands (Kumaresan et al, 2006;Hussain, 1996;Fariati et al, 1998) have been used to obtain coordination polymers but, to the best of our knowledge, very little is known about the coordination chemistry of 1-oxopyridinium-2-thiopropionic acid, HOPTP (Ramasubramanian et al, 2007). The HOPTP ligand possesses several features.…”