Synthesis and crystal structure of hydrated μ-oxa-lato-bis-{bis-[3-methyl-5-(pyridin-2-yl)-1 H-1,2,4-triazole]iron(II)} bis-(toluene-sulfonate) 2.75-hydrate

Acta Crystallogr E Crystallogr Commun. 2022 Jul 26;78(Pt 8):829-832. doi: 10.1107/S2056989022007460. eCollection 2022 Aug 1.

Abstract

In the title compound [Fe2(C2O4)(C8H8N4)4](CH3C6H4SO3)2·2.75H2O, the two FeII ions have a highly distorted octa-hedral FeN4O2 environment formed by two bidentate triazole-based chelating ligands and a bis-bidentate oxalate bridging anion that connects the metal ions. Stabilization within the crystal structure is provided via a system of O-H⋯O and N-H⋯O hydrogen bonding, which determines the formation of a two-dimensional architecture along the a-axis direction.

Keywords: 1,2,4-triazole; X-ray crystallography; crystal structure; iron(II) complex; oxalato-bridged complex.

Grants and funding

This work was supported by grants 22BF037–06 obtained from the Ministry of Education and Science of Ukraine.