用溶剂热方法合成了一种新型链状化合物Mn3(dap)2(AsS3)2(dap=1,2-丙二胺),通过单晶X-射线衍射技术对其进行了晶体结构分析,该化合物属于单斜晶系,空间群C2/c.晶胞参数α=2.0869(14) nm,b=0.8745(6)nm,c=1.2496(8)nm,β=121.141(10)°,Z=4.标题化合物由两个相对称的[AsS3]3-三角锥与两个对称的过渡金属胺螯合物[Mn (dap)]2+通过共用S原子连接形成{[Mn(dap)]2(AsS3)2 }2-原子簇,这些原子簇之间由四配位的Mn1进一步连接,形成沿c轴延伸的{Mn3(dap)2(AsS3)2}n一维链.紫外-可见漫反射光谱研究表明,化合物为宽带半导体,带隙Eg=2.5 eV.同时对该化合物进行了IR、XRD、XPS等表征.
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