高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (S1): 272.

• Chemistry in Materials Sciences • 上一篇    下一篇

Synthesis and Structure of KLn2CuSe4 (Ln=Ho, Er), A New Phase with IR-optical Transparency

ZENG Hui-Yi, MAO Jiang-Gao, CHEN Jiu-Tong, DONG Zhen-Chao. GUO Guo-Cong, HUANG Jin-Shun   

  1. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002
  • 出版日期:2000-12-31 发布日期:2000-12-31

Synthesis and Structure of KLn2CuSe4 (Ln=Ho, Er), A New Phase with IR-optical Transparency

ZENG Hui-Yi, MAO Jiang-Gao, CHEN Jiu-Tong, DONG Zhen-Chao. GUO Guo-Cong, HUANG Jin-Shun   

  1. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002
  • Online:2000-12-31 Published:2000-12-31

摘要:

Research on rare earth chalcogenides has been an active.area of solid state chemistry due to their rich structural chemistry and various interesting physical properties[1-3]. In our attempts to search for potential infrared ceramic materials in the rare-earth-transition-metal chalcogenide system, two new quaternary selenides, KHo2CuSe4 and KEr2CuSe4, were obtained by a two-step synthetic route. Precursors from the first-step solid state reaction were mixed with excess amount of the KCl flux. The pressed pellet was placed into a sealed silica ampoule and thermally equilibrated at 930℃ for 8 days prior to slow cooling to room temperature. Red,transparent, and columnar single crystals of these two phases were isolated from the flux by a suction filtration technique with the products washed with distilled water. The incidental incorporation of the flux cation leads to the formation of the new phases.

Abstract:

Research on rare earth chalcogenides has been an active.area of solid state chemistry due to their rich structural chemistry and various interesting physical properties[1-3]. In our attempts to search for potential infrared ceramic materials in the rare-earth-transition-metal chalcogenide system, two new quaternary selenides, KHo2CuSe4 and KEr2CuSe4, were obtained by a two-step synthetic route. Precursors from the first-step solid state reaction were mixed with excess amount of the KCl flux. The pressed pellet was placed into a sealed silica ampoule and thermally equilibrated at 930℃ for 8 days prior to slow cooling to room temperature. Red,transparent, and columnar single crystals of these two phases were isolated from the flux by a suction filtration technique with the products washed with distilled water. The incidental incorporation of the flux cation leads to the formation of the new phases.

TrendMD: