K₂Ag₆Sn₃S₁₀: A Quaternary Sulfide Composed of Silver Sulfide Layers Pillared by Zigzag Chains [SnS₃]^2-

A novel framework K2Ag6Sn3S10 was synthesized solvothermally and characterized by single-crystal diffraction. The framework comprises [Ag6SnS4]2+ cationic layers pillared by [SnS3]2- zigzag chains formed by vertex-sharing SnS4 tetrahedra, and potassium ions are located in 1D channels. This compound crystallizes in the orthorhombic Pbcn space group with a = 24.0201(2) Å, b = 6.4017(3) Å, c = 13.3056(4) Å, Z = 4. Its thermal and optical properties are studied.新型框架材料K₂Ag₆Sn₃S₁₀经溶剂热法合成，并通过单晶衍射（single-crystal diffraction）完成表征。该框架由[Ag₆SnS₄]²⁺阳离子层构成，该阳离子层由共顶点SnS₄四面体构筑的[SnS₃]²⁻曲折链柱撑，钾离子位于一维（1D）通道中。该化合物结晶于正交晶系Pbcn空间群，晶胞参数为a=24.0201(2) Å、b=6.4017(3) Å、c=13.3056(4) Å，Z=4。并对其热学与光学性能开展了研究。