title: Poly[(μ-3,5-dinitro-benzoato)(μ-3,5-dinitro-benzoic acid)rubidium].
abstract: The asymmetric unit of the title compound, [Rb(C(7)H(3)N(2)O(6))(C(7)H(4)N(2)O(6))](n), comprises an Rb(+) cation, a 3,5-dinitro-benzoate anion and a 3,5-dinitro-benzoic acid ligand. The Rb(+) cation is nine-coordinated by O atoms from four 3,5-dinitro-benzoate anions and three neutral 3,5-dinitro-benzoic acid ligands. The metal atom is firstly linked by four bridging carboxyl groups, forming a binuclear motif, which is further linked by the nitro groups into a two-dimensional framework along the [110] direction. A short O-H⋯O hydrogen bond between two adjacent carboxy/carboxylate groups occurs.
authors.affiliation: Xi'an Medical University, Department of Pharmacy, Hanguang Road No.137, Xi'an 710021, Shaanxi,  People's Republic of China.
authors.forename: Yanqing
authors.initials: Y
authors.lastname: Miao
authors.forename: Tao
authors.initials: T
authors.lastname: Fan
references.citation: J Am Chem Soc. 2005 Mar 23;127(11):3831-7
references.pmid: 15771518
references.citation: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references.pmid: 18156677