Poly[[(μ4-benzene-1,3,5-tri-carboxyl-ato-κ(4) O (1):O (1'):O (2):O (3))bis-(2,2-bi-pyridine-κ(2) N,N')(μ2-hydroxido)dicopper(II)] trihydrate]

Mohamed N El-Kaheli; Ramadan M El-Mehdawi; Ramadan G Abuhmaiera; Mufida M Ben Younes; Fathia A Treish; Annalisa Guerri; Carla Bazzicalupi

doi:10.1107/S1600536814013877

Poly[[(μ4-benzene-1,3,5-tri-carboxyl-ato-κ(4) O (1):O (1'):O (2):O (3))bis-(2,2-bi-pyridine-κ(2) N,N')(μ2-hydroxido)dicopper(II)] trihydrate]

Acta Crystallogr Sect E Struct Rep Online. 2014 Jun 21;70(Pt 7):m270-1. doi: 10.1107/S1600536814013877. eCollection 2014 Jul 1.

Authors

Mohamed N El-Kaheli¹, Ramadan M El-Mehdawi¹, Ramadan G Abuhmaiera¹, Mufida M Ben Younes¹, Fathia A Treish¹, Annalisa Guerri², Carla Bazzicalupi²

Affiliations

¹ Chemistry Department, Tripoli University, Tripoli, Libya.
² Chemistry Department "U. Schiff", University of Florence, Florence, Italy.

Abstract

In the title two-dimensional coordination polymer, {[Cu2(C9H3O6)(OH)(C10H8N2)2]·3H2O} n , each of the two independent Cu(II) atoms is coordinated by a bridging OH group, two O atoms from two benzene-1,3,5-tri-carboxyl-ate (L) ligands and two N atoms from a 2,2- bi-pyridine (bipy) ligand in a distorted square-pyramidal geometry. Each L ligand coordinates four Cu(II) atoms, thus forming a polymeric layer parallel to the bc plane with bipy molecules protruding up and down. The lattice water mol-ecules involved in O-H⋯· O hydrogen bonding are situated in the inner part of each layer. The crystal packing is consolidated by π-π inter-actions between the aromatic rings of bipy ligands from neigbouring layers [inter-centroid distance = 3.762 (3) Å].

Keywords: Bipyridine; Copper nitrate; Topology; Two-dimension.; benzene-1,3,5-tricarboxylic acid; crystal structure.