(Cs6Cl)6Cs3[Ga53Se96]: A Unique Long Period-Stacking Structure of Layers Made from Ga2Se6 Dimers via Cis or Trans Intralayer Linking

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• 作者：Hua Lin ; Hong Chen ; Zi-Xiong Lin ; Hua-Jun Zhao ; Peng-Fei Liu ; Ju-Song Yu ; Ling Chen
• 刊名：Inorganic Chemistry
• 出版年：2016
• 出版时间：February 1, 2016
• 年：2016
• 卷：55
• 期：3
• 页码：1014-1016
• 全文大小：286K
• ISSN：1520-510X

文摘

The new compound (Cs₆Cl)₆Cs₃[Ga₅₃Se₉₆] with its own structure type has been discovered by high-temperature solid-state reactions. The compound features a unique long period-stacking structure of layers that are built by the commonly observed dimeric Ga₂Se₆ unit extending in cis or trans intralayer linking. Single-crystal X-ray diffraction analyses show the trigonal space group R3?m (No. 166) and a = 11.990(5) ?, c = 50.012(4) ?, and V = 6226.5(6) ?³. The UV–vis–near-IR spectrum reveals a wide band gap of 2.74 eV that agrees well with the electronic structure calculation.