Synthesis, crystal structures and properties of Ni(NCS)2-4-(hydroxymethyl)pyridine coordination compounds

Reaction of Ni(NCS)2 with 4-(hydroxymethyl)pyridine leads to the formation of five new coordination compounds. The crystal structures of compounds 1-H2O, 1, 2 and 3 consist of discrete complexes, in which the Ni cations are coordinated by two terminal N-bonded thiocyanato anions and four neutral co-ligands, within slightly distorted octahedra. In the structure of 4, two Ni cations are linked into dimers by pairs of μ-1,3-bridging anions and are further connected into chains by the 4-(hydroxymethyl)pyridine ligand. Compound 4 shows an antiferromagnetic transition at TN = 6.7 K. The compounds were additionally characterized by IR spectroscopy, thermoanalytical methods and X-ray powder diffraction.

Graphical abstractNew coordination compounds based on Ni(II) thiocyanate and 4-(hydroxymethylpyridine) were synthesized, structurally characterized and investigated for their thermal, spectroscopic and magnetic properties.Figure optionsDownload full-size imageDownload as PowerPoint slide