Synthesis and Crystal Structure of Ag 2 MnSnS 4

The tetrahedral compound Ag2MnSnS4 was synthesized using high-temperature solid-state synthesis in evacuated quartz-ampoules. The structure was solved using single-crystal X-ray diffraction. Ag2MnSnS4 crystallizes in the monoclinic spacegroup Pn with R1 = 3.48 % and wR2 = 7.32 % (all data). The lattice constants are a = 6.696(1) Å, b = 6.991(1) Å, c = 8.222(2) Å and β = 90.00(3)° (pseudo-orthorhombic). Ag2MnSnS4 can be derived from wurtzite via cross-substitution as shown by Parthé.[1]