Ba3KSb4S9Cl: A New Pentanary Antimony Sulfide
作者单位：Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences
会议名称：《中国化学会第九届全国无机化学学术会议》
会议日期：2015年
学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学]
关 键 词：Antimony sulfides NLO SHG
摘 要：Antimony sulfides have draw considerable attentions not only for their potential application as thermoelectric materials, such as Sb2Te3,[1] Mo3Sb5Te2,[2] and Ag SbxBi3-xS5[3] and nonlinear optical（NLO） materials, such as RE4 Ga Sb S9（RE = Pr, Nd, Sm, Gd–Ho）,[4] Ba23Ga8Sb2S38[5] and RE4 In Sb S9（RE = La, Pr, Nd）[6] but also because of their diverse structural chemistry, which arises partly from the stereoactive lone pair of electrons of the Sb3+ ion. Given that the strong ionic Ba or K-Cl bonding that are helpful to achieve a large band gap, we introduced Ba2+, K+ and Cl- into Sb/S system and discovered a new pentanary antimony sulfide: Ba3KSb4S9 Cl. It crystallizes in the orthorhombic space group Pnnm. The structure contains one-dimensional（1D） [Sb4S9]6– ribbons running down the [001] direction separated by Ba2+, K+, and Cl-, respectively.