The crystal structure of caesium permanganate by x-ray diffraction

Abstract

The crystal structure of caesium permanganate has been determined. CsMn0â‚„ crystallises in the orthorhombic space group Pnma. There are four molecules per unit cell with a = 10.0692 Ã…, b = 5.8080 Ã…, c = 7.9470 Ã…. The structure was determined by Fourier syntheses on the (010) and (001) projections and refined by two-dimensional difference syntheses. The structure is similar to that of KMn0â‚„. The manganese is surrounded by four oxygen atoms at an average distance of 1.629 Ã… arranged in a slightly distorted tetrahedron. The caesium is surrounded by eight manganese atoms at an average distance of 4.381 Ã….