Synthesis of Novel Quaternary Selenide K2CdSnSe4

Chemical Research in Chinese Universities ›› 2010, Vol. 26 ›› Issue (4): 514-516.

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Synthesis of Novel Quaternary Selenide K₂CdSnSe₄

ZHANG Li-dan^1*, HAN Chun-ying¹, FENG Xiu-ling², WEI Yong-ge³ and GUO Hong-you¹

1. College of Sciences, Beijing University of Chemical Technology, Beijing 100029, P. R. China;
2. Department of Chemistry, Huaihua Institute, Huaihua 418008, P. R. China;
3. College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China

Received:2009-07-15 Revised:2009-09-23 Online:2010-07-25 Published:2010-10-01
Contact: ZHANG Li-dan. E-mail: zhangld@mail.buct.edu.cn
Supported by:
Supported by the Fund of State Key Laboratoy of Chemical Resource Engineening, China.

Abstract

Abstract: A novel quaternary metal selenide, K₂CdSnSe₄, was synthesized via a molten-salt reaction at 550 C. The compound has a one-dimensional structure containing a chain of ¹_∞[CdSnSe₄]^2– anions separated by K⁺ cations. The crystal belongs to the space group I-42m, with the unit cell parameters a=0.80298(11) nm, b=0.80298(11) nm, c=0.69217(14) nm, α=β=γ=90°. A reflectance spectroscopy study reveals the nature of the semiconductor with an energy gap of 1.7 eV for the compound and it has a strong optical absorption in a range of 2—5 eV.

Key words: Quaternary metal selenide, Solid state synthesis, Crystal structure

ZHANG Li-dan*, HAN Chun-ying, FENG Xiu-ling, WEI Yong-ge and GUO Hong-you. Synthesis of Novel Quaternary Selenide K₂CdSnSe₄[J]. Chemical Research in Chinese Universities, 2010, 26(4): 514-516.

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Synthesis of Novel Quaternary Selenide K₂CdSnSe₄

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