Crystal structure of BaMn₂(AsO₄)₂ containing discrete [Mn₄O₁₈]^28- units.

ABSTRACT: In our attempt to search for mixed alkaline-earth and transition metal arsenates, the title compound, barium dimanganese(II) bis-(arsenate), has been synthesized by employing a high-temperature RbCl flux. The crystal structure of BaMn₂(AsO₄)₂ is made up of MnO₆ octa-hedra and AsO₄ tetra-hedra assembled by sharing corners and edges into infinite slabs with composition [Mn₂(AsO₄)₂]^2- that extend parallel to the ab plane. The barium cations reside between parallel slabs maintaining the inter-slab connectivity through coordination to eight oxygen anions. The layered anionic framework comprises weakly inter-acting [Mn₄O₁₈]^28- tetra-meric units. In each tetra

SUBMITTER: Alcantar S 

PROVIDER: S-EPMC5730239 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature