[M(dap)₃]InSb₃S₇ (M = Co, Ni): Two Novel Open-Framework Thioindate−Thioantimonates with 8-, 12-, and 16-Ring Intersecting Channels

Two novel open-framework thioindate−thioantimonates [M(dap)3]InSb3S7 [M = Co(1), Ni (2); dap = 1,2-diaminopropane] have been solvothermally synthesized and structurally characterized. 1 and 2 consist of InS4 tetrahedra and SbS33- trigonal pyramids, which are interconnected to form the first examples of three-dimensional In−Sb−S open frameworks with 8-, 12-, and 16-ring intersecting channels.两种新型开放骨架硫代铟锑酸盐[M(dap)₃]InSb₃S₇[M=Co(1)、Ni(2)；dap=1,2-二氨基丙烷(1,2-diaminopropane)]经溶剂热合成并完成结构表征。化合物1与2由InS₄四面体与SbS₃³⁻三角锥构成，二者相互连接形成首例包含8元、12元及16元交叉孔道的三维In-Sb-S开放骨架结构。