title: Tetrakis[(4-aminopyridinio)acetato-kappa O]diaquamanganese(II) diperchlorate.
abstract: In the centrosymmetric title complex, [Mn(C(7)H(8)N(2)O(2))(4)(H(2)O)(2)](ClO(4))(2), the Mn(II) ion is in an octahedral environment, with the equatorial plane being defined by the O atoms of four monodentate carboxylate groups, and the octahedron being completed by two trans-coordinated water molecules. There are intramolecular hydrogen bonds between the coordinated water molecules and the non-coordinated O atoms of the carboxylate groups. Hydrogen bonds between the amino groups and the carboxylate groups of neighbouring molecules generate a layered hydrogen-bonded network.
authors.affiliation: Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, People's Republic of China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhang
authors.forename: Hanbing
authors.initials: H
authors.lastname: Tao
authors.forename: Chunying
authors.initials: C
authors.lastname: Duan
authors.forename: Yizhi
authors.initials: Y
authors.lastname: Li
authors.forename: Longgen
authors.initials: L
authors.lastname: Zhu
mesh_terms: D000631:Aminopyridines / Q000737:chemistry*; D002374:Catalase / Q000737:chemistry; D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D008958:Models, Molecular; D008968:Molecular Conformation; D018716:Molecular Mimicry; D009942:Organometallic Compounds / Q000737:chemistry*
chemical_list: D000631:Aminopyridines; D009942:Organometallic Compounds; C455516:tetrakis((4-aminopyridinio)acetato-kappaO)diaquamanganese(II); D002374:Catalase