离子液体中的化物化学:双化合物[Sb7S8Br2][AlCl4) 3的非线性光波混合特性
Qichun Zhang1, In Chung, Joon I Jang
1Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA.
Journal of the American Chemical Society
|July 8, 2009
概括
合成了一种新型的反-硫-阳离子,[Sb(7) S(8) Br(2) ](3+). 这种非中心对称的化合物表现出显著的非线性光学特性,使其对光学应用具有前景.
科学领域:
- 无机化学 无机化学 有机化学
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
背景情况:
- 离子液体为合成新型化合物提供了独特的反应环境.
- 反-化物材料因其光电子特性而引起人们的兴趣.
研究的目的:
- 为了合成和表征一种新的反-硫-离子.
- 为了研究合成化合物的非线性光学 (NLO) 特性.
主要方法:
- 在165°C时从EMIMBr-AlCl(3) 离子液中合成[Sb(7) S(8) Br(2) ](3+) 离子作为[AlCl(4) ](-) 盐.
- 结晶学分析以确定非中心对称结构 (空间组P2(1)).
- 光学光谱学用于评估二和差频生成.
主要成果:
- 一个具有双立方体结构的新型离子的形成:[Sb(7) S(8) Br(2) ](3+).
- 该化合物结晶在一个非中心对称的空间组P2(1)2(1)2(1).
- 在可见和近红外区域观察到宽带非线性光学响应.
结论:
- 一个新的-硫-集群的成功合成,在非线性光学中具有潜在的应用.
- 独特的双立方体结构有助于观察到的NLO特性.
- 这项工作扩大了来自离子液体的功能无机材料库.
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