| Molten Salt Synthesis, Crystal Structure and Optical Properties of a Novel Quaternary Metal Selenide, K2AgIn3Se6 |
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| 作者姓名： | 郭洪猷 王志霞 舒桂明 王如骥 张丽丹 王平 |
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| 作者单位： | [1]DepartmentofChemistry,BeijingUniversityofChemicalTechnology,Beijing100029,China [2]DepartmentofGeology,PekingUniversity,Beijing100871,China [3]DepartmentofChemistry,TsinghuaUniversity,Beijing100083,China |
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| 基金项目： | Project supported by the State Key Laboratory of Structural Chemistry for Unstable and Stable Species，China. |
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| 摘 要： | K2AgIn3Se6 was synthesized by a molten-salt (alkali-metal polyselenide flux) reaction at 500 ℃. The orange red granular crystal crystallizes in monoclinic space group C2/c with cell parameters, a=1.16411(7) nm, b=1.16348(8) nm, c=2.14179(12) nm, V=2.8740(9) nm^3, and Z=8. The crystal has a new two-dimensional structure containing ^2∞AgIn3Se6]^2- anionic layers separated by K^- cations and the ^2∞AgIn3Se6]^2- layer is constructed with corner-shared AgSe4] and InSe4] tetrahedra. The optical band gap of K2AgIn3Se6 was determined to be ca. 2.9 eV by UV/vis/NIR diffuse reflectance spectra.
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| 关 键 词： | K2AgIn3Se6 熔盐法 合成 晶体结构 光学性质 |
Molten Salt Synthesis, Crystal Structure and Optical Properties of a Novel Quaternary Metal Selenide, K_2AgIn_3Se_6 |
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| Guo,Hong-You,a Wang,Zhi-Xiaa Shu,Gui-MingbWang,Ru-Jic Zhang,Li-Dana Wang,Pinga a.Molten Salt Synthesis, Crystal Structure and Optical Properties of a Novel Quaternary Metal Selenide, K2AgIn3Se6[J].Chinese Journal of Chemistry,2004,22(3):259-263. |
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| Authors: | Guo Hong-You a Wang Zhi-Xiaa Shu Gui-MingbWang Ru-Jic Zhang Li-Dana Wang Pinga a |
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| Institution: | Guo,Hong-You*,a Wang,Zhi-Xiaa Shu,Gui-MingbWang,Ru-Jic Zhang,Li-Dana Wang,Pinga a Department of Chemistry,Beijing University of Chemical Technology,Beijing 100029,China b Department of Geology,Peking University,Beijing 100871,China c Department of Chemistry,Tsinghua University,Beijing 100083,China |
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| Abstract: | K2AgIn3Se6 was synthesized by a molten‐salt (alkali‐metal polyselenide flux) reaction at 500 C. The orange red granular crystal crystallizes in monoclinic space group C2/c with cell parameters, a =1.16411(7) nm, b= 1.16348(8) nm, c=2.14179(12) nm, V=2.8740(9) nm3, and Z=8. The crystal has a new two‐dimensional structure containing 2‐?AgInSe6]2‐? anionic layers separated by K+ cations and the 2‐?AgIn3Se6]2‐? layer is constructed with comer‐shared AgSe4] and InSe4] tetrahedra. The optical band gap of K2AgIn3Se6 was determined to be ca. 2.9 eV by UV/vis/NIR diffuse reflectance spectra. |
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| Keywords: | potassium silver indium selenide K2AgIn3Se6 solid state synthesis crystal structure |
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