Research Article: catena-Poly[[[bis­[μ-3-(4-carb­oxy­phen­oxy)propionato]-κ3O1,O1′:O1;κ3O1:O1,O1′-bis­[aqua­(N,N-dimethyl­formamide-κO)cadmium]]-μ-4,4′-bipyridine-κ2N:N′] dinitrate]

Date Published: February 01, 2012

Publisher: International Union of Crystallography

Author(s): Shan Gao, Seik Weng Ng.


In the title coordination polymer, {[Cd2(C10H9O5)2(C10H8N2)2(C3H7NO)2(H2O)2](NO3)2}n, the 3-(4-carb­oxy­phen­oxy)propionate monoanion O,O′-chelates to a CdII cation through the aliphatic carboxyl­ate end. One of these O atoms is also connected to the metal cation from an inversion-related metal atom. The five O atoms bonded to the metal centre form a penta­gon, above and below which are located the N atoms of the 4,4′-bipyridine mol­ecules. The polycationic ribbon propagates along the b axis of the unit cell. The (aromatic) carboxyl end of the monoanion connects adjacent ribbons into a layer motif in the (102) plane. The nitrate ions are hydrogen bonded to the layer. The geometry of the CdII atom is a trans-N2O5Cd penta­gonal bipyramid.

Partial Text

For 3-(4-carb­oxy­phen­oxy)propionic acid, see: Gao & Ng (2006 ▶).