Crystal Structure Of Catena-Poly[[[Di­Aqua­Bis­(2,4,6-Tri­Methyl­Benzoato-Κo)Cobalt(Ii)]-Μ-Aqua-Κ2 O:O] Dihydrate]

Abstract

In {[Co(C10H11O2)2(H2O)3]·2H2O}n, the CoII atom is coordinated by two TMB anions and two water mol­ecules in the basal plane, while another water mol­ecule bridges the CoII atoms in the apical directions, forming polymeric chains running along [001]., The asymmetric unit of the title one-dimensional polymeric compound, {[Co(C10H11O2)2(H2O)3]·2H2O}n, contains one CoII cation situated on a centre of inversion, one-half of a coordinating water mol­ecule, one 2,4,6-tri­methyl­benzoate (TMB) anion together with one coordinating and one non-coordinating water mol­ecule; the TMB anion acts as a monodentate ligand. In the anion, the carboxyl­ate group is twisted away from the attached benzene ring by 84.9 (2)°. The CoII atom is coordinated by two TMB anions and two water mol­ecules in the basal plane, while another water mol­ecule bridges the CoII atoms in the axial directions, forming polymeric chains running along [001]. The coordination environment for the CoII cation is a slightly distorted octa­hedron. The coordinating and bridging water mol­ecules link to the carboxyl­ate groups via intra- and inter­molecular O—H⋯O hydrogen bonds, enclosing S(6) ring motifs, while the coordinating, bridging and non-coordinating water mol­ecules link to the carboxyl­ate groups and the coordinating water mol­ecules link to the non-coordinating water mol­ecules via O—H⋯O hydrogen bonds, enclosing R 2 2(8) and R 3 3(8) ring motifs. Weak C—H⋯O and C—H⋯π inter­actions may further stabilize the crystal structure.