CRYSTAL STRUCTURE OF BARIUM BIS[N-(2-HYDROXYETHYL)IMINODIACETATO]COBALTATE(III) HYDROCARBONATE DIHYDRATE BA(M4-HCO3)[ТРАНС(N)-CO(HEIDA)2]в‹…2H2O
M. Zabel, A. L. Poznyak, V. I. Pavlovskii
Keywords: crystal structure, cobalt(III) complex, barium hydrocarbonate, N-(2-hydroxyethyl)imino- diacetate ion.
Pages: 594-597
Abstract
Ba[Co(heida)2](HCO3)⋅2H2O crystals were grown (orthorhombic, a = 9.4491(5) Å, b = 10.9719(5) Å, c = 19.6077(9) Å, Z = 4, space group Pca21), and their structure was solved by X-ray diffraction. The Co atoms in the complex anion were coordinated by two N-(2-hydroxyethyl)iminodiacetate (heida) ligands via the N atom and two O atoms of each ligand. The Ba atoms and the complex anions form "honeycomb" layers linked via three О atoms. The "honeycombs" are additionally linked by their Ва atoms with the О atoms of the hydroxyethyl groups. The Ba atoms are aligned within a layer and linked via the bridging HCO3 hydrocarbonate groups. The c.n. of Ва atoms is 10 (one water molecule; five О atoms of the complex anions, one from each of the nearest neighbors; and four О atoms of the hydrocarbonate ions).
|
