基于CD的协调框架具有多种光学特性:可调整的RTP,光色学和SHG效率
Xue-Mei Jing1, Tong Liu1, Yu-Ying Xia1
1College of Chemistry and Chemical Engineering, Qingdao University, Shandong 266071, China.
Inorganic chemistry
|June 6, 2025
概括
合成了两种新的-有机框架,表现出室温光和三重消息加密的光色特性. 一个框架还显示了第二波生成,这对光学应用很有用.
科学领域:
- 材料科学 材料科学 材料科学
- 协调化学 协调化学
- 发光的光度是非常的低.
背景情况:
- 有机框架为高级应用提供可调节的特性.
- 发光材料对于传感和加密技术至关重要.
- 非中心对称材料是非线性光学现象的关键.
研究的目的:
- 使用特定的配体合成新的-有机框架.
- 研究合成化合物的发光和光色特性.
- 探索安全加密和非线性光学中的潜在应用.
主要方法:
- 离子与三胺-3-yl) 胺和铁酸的协调辅助自组合.
- 结晶结构和发光特性 (光) 的表征.
- 评价光色行为和第二波生成 (SHG) 效应.
主要成果:
- 两个Cd-有机框架,[Cd3(PTA) 3 ((TPA) ] (1) 和[Cd3(PTA) 3 ((TPA) ((DMA) ]•2DMA (2),已经成功合成.
- 这两种化合物都表现出室温光 (RTP),其中化合物1显示激发反应的发射,化合物2显示蓝绿色光.
- 化合物1和2表现出光色的行为,在与光和光相结合时,可实现三重信息加密. 复合体2展出了显著的第二波代.
结论:
- 合成的Cd-有机框架具有独特的发光和光色特性.
- 这些材料为多级安全加密系统提供了一个有前途的平台.
- 化合物2的非中心对称性使其能够产生显著的第二波,这与光学设备有关.
更多相关视频
相关概念视频
01:26Photochemical Electrocyclic Reactions: Stereochemistry
1.9K
The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
Selection Rules: Photochemical Activation
Selection Rules: Photochemical Activation
1.9K
02:52Stereoisomerism
12.5K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula.
Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...
Isomers are different chemical species that have the same chemical formula.
Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...
12.5K