应用化学 ›› 1995, Vol. 0 ›› Issue (5): 97-99.

• 研究论文 • 上一篇    下一篇

复合卤化物中钐价态的异常变化及其稳定性

孙淑清, 石春山   

  1. 中国科学院长春应用化学研究所稀土化学与物理开放实验室, 长春 130022
  • 收稿日期:1994-12-27 修回日期:1995-04-27 出版日期:1995-10-10 发布日期:1995-10-10
  • 基金资助:
    国家自然科学基金资助课题

Unusual Variation and Stability in Valence of Sm in Complex Halide

Sun Shuqing, Shi Chunshan   

  1. Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
  • Received:1994-12-27 Revised:1995-04-27 Published:1995-10-10 Online:1995-10-10

摘要: Sm2+离子在红区和红外区可以产生4f6组态内的f-f跃迁锐线发射和4f55d组态的d-f跃迁宽带发射.由于d-f跃迁是属于宇称允许的跃迁,所以其发射强度要比4fn组态内的f-f跃迁强得多,这可以保证对泵浦的有效吸收,提高光泵效率.而4fn组态内部的f-f跃迁可以实现激光振荡,有利于提高储能,降低闭值.

关键词: 钐, 价态, 复合卤化物, 光谱

Abstract: In this paper, we have investigated Sm3+→Sm/2+ valence transform in process ofpreparing KMgF3: Sm by high temperature decomposition of SmF3.We have also investi-gated the effect of host structure on the stability of Sm2+ in some complex fluorides and alka-line earth metal fluorohalogenides.

Key words: samarium, valence, complex halide, spectrum