Diaquabis[5-(pyrazin-2-yl)-3-(pyridin-4-yl)-1H-1,2,4-triazol-1-ido-κN¹]zinc

Abstract

The title mononuclear complex, [Zn(C11H7N6)2(H2O)2], is composed of one ZnII ion, two deprotonated ppt ligands [Hppt = 5-(pyrazin-2-yl)-3-(pyridin-4-yl)-1H-1,2,4-triazole] and two coordinating water mol­ecules. The asymmetric unit consists of one half-mol­ecule that is completed by application of a centre of symmetry. The ZnII atom is six-coordinated in an octa­hedral environment, surrounded by two O atoms in the axial positions and four N atoms in the equatorial plane. Adjacent mononuclear units are further linked via O—H⋯N hydrogen-bonding inter­actions, forming a two-dimensional network along (100).

Crystal structure and characterization of two cadmium(II) coordination polymers with a multidentate N-donor tecton 3-(pyridin-4-yl)-5-(pyrazin-2-yl)-1H-1,2,4-triazole

“…In this contribution, we have investigated a pyridine and pyrazine-substituted triazole tecton, 3-(pyridin-4-yl)-5-(pyrazin-2-yl)-1H-1,2,4-triazole (HL), which is an angular pyridyl-pyrazinyl ligand that may show different conformations depending on the conditions used for constructing metalorganic frameworks. Coordination of pyridine and pyrazine substituted triazole to metal ions has only been the subject of limited study, and to our knowledge, only two examples with HL have been reported [19,20]. (1) and [CdL 2 ] n (2), respectively.…”