Langbeinite-type (NH₄)₂Mn₂(SO₄)₃

The anionic component of the crystal structure of cubic langbeinite-type diammonium dimanganese(II) tri­sulfate­(IV), (NH₄)₂Mn₂(SO₄)₃, is a three-dimensional [Mn₂(SO₄)₃]^2- network based on SO₄ tetra­hedra corner-linked to Mn^IIO₆ octa­hedra. The charge-balancing ammonium cations occupy the cavities in the network. The pairs of independent Mn and N atoms lie on special positions of site symmetry 3.

Di-μ-chloro-bis­[bis­(ethane-1,2-di­amine-κ²N,N′)­manganese(II)] dichloride

The dinuclear cation of the title compound, [Mn₂Cl₂(C₂H₈N₂)₄]Cl₂, has the Cl atoms bridging the ethane-1,2-di­amine-chelated Mn atoms across a centre of inversion. The cations are linked to the chloride anions by hydrogen bonds, forming a three-dimensional network.