Solvothermal Syntheses and Characterizations of Two New Sliver Selenidoantimonates of Ag3SbSe3 and Ag5SbSe4
岳呈阳;张慧苹;陆欣秀;白轶群;石昊;徐鑫
Key Laboratory of Inorganic Chemistry in Universities of Shandong, Department of Chemistry and Chemical Engineering, Jining University, Qufu, Shandon 273155, China
Solvothermal Syntheses and Characterizations of Two New Sliver Selenidoantimonates of Ag3SbSe3 and Ag5SbSe4
Key Laboratory of Inorganic Chemistry in Universities of Shandong, Department of Chemistry and Chemical Engineering, Jining University, Qufu, Shandon 273155, China
Two new sliver selenidoantimonates, namely, Ag3SbSe3 and Ag5SbSe4, were prepared under mid solvothermal conditions and structurally characterized by single-crystal X-ray diffraction studies. Ag3SbSe3 crystallizes in the orthorhombic space group Pnma (No. 62) with a = 8.2414(12), b = 11.4925(17), c = 21.220(3) Å, V = 2009.8(5) Å3 and Z = 12. Its structure belongs to the β-Ag3AsSe3 type and features a 3D complex network composed of distorted trigonal planar AgSe3 and tetrahedral AgSe4 units as well as SbSe3 trigonal pyramids. Ag5SbSe4 crystallizes in the orthorhombic system, nocentrosymmetric space group Cmc21 (No. 36) with a = 8.1148(6), b = 12.9829(10), c = 8.7017(7) Å, V = 916.76(12) Å3 and Z = 4. Its structure adopts the Ag5SbS4 type and features a 3D framework based on trigonal planar AgSe3 units and SbSe3 trigonal pyramids. The results of optical absorption spectra and band structure calculations indicate that the title compounds are narrow band-gap semiconductors.
Two new sliver selenidoantimonates, namely, Ag3SbSe3 and Ag5SbSe4, were prepared under mid solvothermal conditions and structurally characterized by single-crystal X-ray diffraction studies. Ag3SbSe3 crystallizes in the orthorhombic space group Pnma (No. 62) with a = 8.2414(12), b = 11.4925(17), c = 21.220(3) Å, V = 2009.8(5) Å3 and Z = 12. Its structure belongs to the β-Ag3AsSe3 type and features a 3D complex network composed of distorted trigonal planar AgSe3 and tetrahedral AgSe4 units as well as SbSe3 trigonal pyramids. Ag5SbSe4 crystallizes in the orthorhombic system, nocentrosymmetric space group Cmc21 (No. 36) with a = 8.1148(6), b = 12.9829(10), c = 8.7017(7) Å, V = 916.76(12) Å3 and Z = 4. Its structure adopts the Ag5SbS4 type and features a 3D framework based on trigonal planar AgSe3 units and SbSe3 trigonal pyramids. The results of optical absorption spectra and band structure calculations indicate that the title compounds are narrow band-gap semiconductors.
This work was supported by the National Natural Science Foundation of China (Nos. 21201081 and 21571081) and State Key Laboratory of Structural Chemistry (No. 20150005)
岳呈阳;张慧苹;陆欣秀;白轶群;石昊;徐鑫 . Solvothermal Syntheses and Characterizations of Two New Sliver Selenidoantimonates of Ag3SbSe3 and Ag5SbSe4[J]. 结构化学, 2016, 35(2): 227-236.
YUE Cheng-Yang;ZHANG Hui-Ping;LU Xin-Xiu;BAI Yi-Qun;SHI Hao;XU Xin . Solvothermal Syntheses and Characterizations of Two New Sliver Selenidoantimonates of Ag3SbSe3 and Ag5SbSe4. CHINESE JOURNAL OF STRUCTURAL CHEMISTRY, 2016, 35(2): 227-236.
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