title: A two-dimensional network containing an -Mn-O-C-O-Mn- chain: poly[diaqua[1,2-bis(pyridin-4-yl)ethylene][μ3-3-carboxy-5-(carboxylatomethoxy)benzoato]manganese(II)].
abstract: In the title compound, [Mn(C10H6O7)(C12H10N2)(H2O)2]n or [Mn(HOABDC)(bpe)(H2O)2]n [H3OABDC is 5-(carboxymethoxy)isophthalic acid and bpe is 1,2-bis(pyridin-4-yl)ethylene], each Mn(II) cation is at the centre of a distorted octahedron formed by three carboxylate O atoms from three different HOABDC(2-) ligands, one pyridyl N atom from the terminal bpe ligand and two water molecules. The flexible oxyacetate group bound to a methylene C atom of the HOABDC(2-) ligand links the Mn(II) centres into -Mn-O-C-O-Mn- chains, and the carboxylate group bound directly to the benzene ring extends the chains into two-dimensional layers which lie parallel to the (010) plane and present herringbone patterns. Intermolecular O-H...N and C-H...O hydrogen bonds connect the layers into a three-dimensional supramolecular structure.
authors.affiliation: Guangdong Provincial Public Laboratory of Analysis and Testing Technology, Guangdong Institute of Analysis, Guangzhou 510070, People's Republic of China.
authors.forename: Yong-Qian
authors.initials: YQ
authors.lastname: Lei
authors.forename: Guan-Hua
authors.initials: GH
authors.lastname: Wang
keywords: 5-(carboxymethoxy)isophthalic acid; crystal structure; manganese compounds; two-dimensional polymeric structures