Poly[di-μ(9)-citrato-cobalt(II)tetra-sodium].

ABSTRACT: The title compound, [CoNa(4)(C(6)H(5)O(7))(2)](n), was obtained under hydro-thermal conditions as a minor product. The Co(2+) cation is located on a crystallographic inversion center and is coordinated by six O atoms from two different citrate units, forming a [Co(C(6)H(5)O(7))(2)](4-) building unit with Co-O bond lengths between 2.0578 (17) and 2.0813 (16) Å. The structure features two crystallographically independent Na(+) ions. The first Na(+) cation is five-coordinated by O atoms of five carboxylate groups from four different citrate anions. The second Na(+) cation is surrounded by six O atoms of five carboxylate groups from five different citrate anions. The carboxylate groups of the citrate are completely depronona-ted, the hydroxyl group, however, is not. It is coordinated to the Co

SUBMITTER: Liu Z 

PROVIDER: S-EPMC3344400 | biostudies-literature | 2012 May

REPOSITORIES: biostudies-literature