| A New 1-D Chain ofγ-Hg3S2Br2Constructed from Hg4S4Squares:Solid-state Synthesis,Structure and Optical Properties |
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| 引用本文： | 刁剑锋,谢芷忻,李培欣,郭国聪.A New 1-D Chain ofγ-Hg3S2Br2Constructed from Hg4S4Squares:Solid-state Synthesis,Structure and Optical Properties[J].结构化学,2021(2):264-269,148. |
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| 作者姓名： | 刁剑锋 谢芷忻 李培欣 郭国聪 |
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| 作者单位： | College of Chemistry and Materials Science;State Key Laboratory of Structural Chemistry;Department of Chemistry |
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| 基金项目： | Supported by the NSF of China (21871264);the NSF of Fujian Province (2018J01028, 2018J05034) |
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| 摘 要： | A new metal chalcogenide,γ-Hg3S2Br2(1),has been prepared by moderate-temperature solid-state reaction,and its crystal structure was determined by single-crystal X-ray diffraction analysis.Compound 1 crystallizes in space group Cmmm of orthorhombic system with a=9.1923(18),b=18.2262(5),c=4.6251(7)?,V=774.9(3)?3and Z=4.In the structure,two Hg(1),two Hg(2)and four S(1)atoms form a near square Hg4S4,and such squares are linked by Hg(3)atoms nearly linearly coordinated to two S1 atoms of two parallel Hg4S4squares to form one-dimensional infinite Hg6S4chains along c direction.Optical absorption spectra reveal the presence of sharp optical gap of 2.80 eV for 1.IR spectrum,TGA and electric resistivity have been investigated.
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| 关 键 词： | crystal structure metal chalcogenides resistance SEMICONDUCTOR solid-state reaction |
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