title: Diaqua-bis[5-(2-pyrid-yl)tetra-zolato-κN,N]iron(II).
abstract: The title complex, [Fe(C(6)H(4)N(5))(2)(H(2)O)(2)], was synthesized by the reaction of ferrous sulfate with 5-(2-pyrid-yl)-2H-tetra-zole (HL). The Fe(II) atom, located on a crystallographic center of inversion, is coordinated by four N-atom donors from two planar trans-related deprotonated L ligands and two O atoms from two axial water mol-ecules in a distorted octa-hedral geometry. The Fe(II) mononuclear units are further connected by inter-molecular O-H⋯N and C-H⋯O hydrogen-bonding inter-actions, forming a three-dimensional framework.
authors.affiliation: Zhengzhou University of Light Industry, Henan Provincial Key Laboratory of Surface & Interface Science, Henan, Zhengzhou 450002, People's Republic of China.
authors.forename: Min
authors.initials: M
authors.lastname: Hu
authors.forename: Song-Tao
authors.initials: ST
authors.lastname: Ma
authors.forename: Liang-Qi
authors.initials: LQ
authors.lastname: Guo
authors.forename: Shao-Ming
authors.initials: SM
authors.lastname: Fang