title: catena-Poly[[tetra-aqua-manganese(II)]-μ-5-carboxyl-ato-1-carboxyl-atomethyl-2-oxidopyridinium-κO:O].
abstract: In the title coordination polymer, [Mn(C(8)H(5)NO(5))(H(2)O)(4)](n), the Mn(II) atom is coordinated by two carboxyl-ate O atoms from two 5-carboxyl-ato-1-carboxyl-atomethyl-2-oxidopyridinium (L(2-)) ligands and by four water mol-ecules in a distorted octa-hedral geometry. The L(2-) ligands bridge the Mn atoms into an infinite chain motif along [100]; the chains are further inter-linked by O-H⋯O hydrogen bonds into a three-dimensional supra-molecular net.
authors.affiliation: Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, Zhejiang 321004,  People's Republic of China.
authors.forename: Hong-Yan
authors.initials: HY
authors.lastname: Yuan
authors.forename: Mei-Xiang
authors.initials: MX
authors.lastname: Jiang
authors.forename: Yun-Long
authors.initials: YL
authors.lastname: Feng
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