在乙酸系统中探索新的二阶非线性光学材料
Chuan-Fu Sun1, Chun-Li Hu, Xiang Xu
1State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China.
Journal of the American Chemical Society
|March 25, 2011
概括
合成了四种新的乙酸,其中三种具有非中心对称 (NCS) 结构. 一种化合物显示出强烈的第二和生成 (SHG) 反应,表明非线性光学应用的潜力.
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:
- 单对含有酸盐 (IO3) 和二阶-泰勒扭曲瓦纳基 (VO5或VO6) 单元是设计新型无机材料的关键组成部分.
- 热水合成为构建具有所需性质的复杂无机结构提供了一种多功能途径.
研究的目的:
- 为了合成和表征新的乙酸化合物.
- 研究这些新型材料的结构多样性和潜在的非线性光学特性.
主要方法:
- 用水热反应合成了四种新的乙酸酸盐.
- 使用单晶X射线衍射来确定晶体结构.
- 进行了热分析,光学性能测量,铁电性能测量和理论计算.
主要成果:
- 成功合成了四种新的化合物,α-KVO () 23222O,β-KVO () 223222O,K444VO () 33522HIO3H2O2H2O,以及KVO2222IO33.
- 两个化合物表现出具有不同结构图案的1D阴离子链.
- 一种化合物具有新型分离的[{VO}{IO}{3}{5}{2-}) 单元.
- 这四种化合物中有三种是非中心对称的 (NCS).
- K (((VO) ((2) O ((2) IO ((3)) ((3)) 显示出强烈的,相匹配的第二和生成 (SHG) 响应 (约. 3.6 × KTP),高热稳定性,宽透明区域,中等硬度和优良的生长习惯.
结论:
- 热水制法对于合成复杂酸酸酸酸盐是有效的.
- 合成的化合物表现出各种结构特征,包括1D链和孤立单元.
- 发现NCS结构和强烈的SHG响应在K{}VO{}2O{}2O{}2IO{}3}3中,突出了其在非线性光学应用中的潜力.
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