title: Poly[[μ(10)-4,4'-(ethane-1,2-diyldi-oxy)dibenzoato]dipotassium].
abstract: The title salt, [K(2)(C(16)H(12)O(6))](n), was obtained by the reaction of 1,2-bis-[4-(ethyl-carbox-yl)-phenox-yl]ethane with KOH in water. The anion lies on a crystallographic inversion center, which is located at the mid-point of the central C-C bond. The K(+) cation is coordinated by six O atoms, two from the chelating carboxyl-ate group of the anion and four from four neighboring and monodentately binding anions, giving rise to an irregular [KO(6)] coordination polyhedron. The coordination mode of the cation leads to the formation of K/O layers parallel to (100). These layers are linked by the nearly coplanar anions (r.m.s. deviation of 0.064 Å of the carboxyl, aryl and O-CH(2) groups from the least-squares plane) into a three-dimentional network.
authors.affiliation: Guangxi Key Laboratory of Petrochemical Resources, Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004,  People's Republic of China.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Ma
authors.forename: Baohuan
authors.initials: B
authors.lastname: Liang
authors.forename: Wanbing
authors.initials: W
authors.lastname: Lu