一对离子1D Cu(II) 链反体,同时显示出大量的第二和第三和生成响应
Xiaodi Du1, Congli Gao2, Zhiqiang Zhang2
1College of Chemistry and Chemical Engineering, Zhoukou Normal University, Zhoukou 466001, PR China. duxiaodi2000@163.com>.
Dalton transactions (Cambridge, England : 2003)
|September 4, 2023
概括
带有电荷分离的奇拉尔离子协调聚合物表现出增强的非线性光学特性. 这些材料显示出显著的同时产生第二和第三和,为高性能NLO晶体材料提供了一条新的途径.
科学领域:
- 协调化学 协调化学
- 材料科学 材料科学 材料科学
- 非线性光学 (NLO) 是指非线性光学.
背景情况:
- 状联体对于创建非中心对称 (NCS) 结构至关重要,这对于非线性光学 (NLO) 特性至关重要.
- 具有电荷分离的离子协调聚合物 (CP) 可能会增强NLO反应.
- 之前的研究使用了基于酸盐的铜复合物,显示了中度的NLO效应.
研究的目的:
- 通过使用性N-捐赠体合成和表征一对离子1D Cu(II) 链反体.
- 研究非线性光学 (NLO) 行为,特别是第二和生成 (SHG) 和第三和生成 (THG) 响应.
- 确定NCS结构,电荷分离和协调聚合物中增强的NLO特性之间的关系.
主要方法:
- 合成度纯单双度N-捐赠体 (L/L) 和它们与Cu的反应 (ClO4) 2 (H2O) 6.
- 使用X射线晶体学分离并对由此产生的离子1D Cu(II) 链反体 (D-1/L-1) 进行结构性表征.
- 测量非线性光学 (NLO) 属性,包括第二和生成 (SHG) 和第三和生成 (THG) 强度.
主要成果:
- 一对离子1D Cu (II) 链反体,D-1/L-1,已成功合成并进行结构特征.
- 这些化合物结晶在非中心对称 (NCS) P212121空间群中,由于化物对抗离子而导致电荷分离.
- 与酸盐类似物相比,D-1/L-1具有显著增强的同时SHG (0.62/0.60 × KDP) 和THG (238/228 × α-SiO2) 反应.
结论:
- 具有NCS安排和电荷分离的离子CP是同时进行大型SHG和THG反应的理想晶体材料.
- 引入奇拉连接体和使用甲酸对抗离子有效地促进了NLO的活动.
- 这项研究为设计高性能NLO活性协调聚合物晶体材料提供了新的策略.
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