title: Bis[4-amino-3,5-bis-(pyridin-2-yl)-4H-1,2,4-triazole-κ(2)N(1),N(5)]diaqua-cobalt(II) bis-(perchlorate).
abstract: In the title structure, [Co(C(12)H(10)N(6))(2)(H(2)O)(2)](ClO(4))(2), the Co(II) atom lies on an inversion centre and is coordinated in a slightly distorted octa-hedral geometry by four N atoms from two 4-amino-3,5-bis-(pyridin-2-yl)-4H-1,2,4-triazole (adpt) ligands in equatorial positions and two O atoms from two water mol-ecules in axial positions. An intra-molecular N-H⋯N inter-action stabilizes the mol-ecular conformation. Inter-molecular N-H⋯O and O-H⋯O inter-actions involving the perchlorate counter-anions extend the monomeric compound into a two-dimensional network parallel to the bc plane.
authors.affiliation: College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot,  People's Republic of China.
authors.forename: Mi
authors.initials: M
authors.lastname: Feng
authors.forename: Yu-Fei
authors.initials: YF
authors.lastname: Ji
authors.forename: Sheng-Li
authors.initials: SL
authors.lastname: Liang
authors.forename: Zhi-Liang
authors.initials: ZL
authors.lastname: Liu