红色发射1D铜 (I) 硫酸盐和绿色发射2D铜 (I) 化硫酸盐显示第二波生成和两光子吸收过程
Saly Hawila1, Buqin Xu1, Florian Massuyeau2
1Université Claude Bernard Lyon 1, CNRS, IRCELYON UMR 5256, Villeurbanne, 69100, France.
Chemistry (Weinheim an der Bergstrasse, Germany)
|March 27, 2025
概括
合成了两种新的铜 ((I) 协调聚合物家族,以研究离子对结构和光发光效应的影响. 铜化物酸盐表现出强烈的绿色反斯托克斯辐射和潜在的非线性光学特性.
科学领域:
- 协调化学 协调化学
- 材料科学 材料科学 材料科学
- 光物理学的光学物理学
背景情况:
- 铜 (I) 化合物是 fotoluminescent 应用的负担得起的,非关键的原料.
- 基于化物和硫酸盐的铜 (I) 化合物提供高效的排放和稳定性.
研究的目的:
- 合成和描述两个新的铜 (I) 协调聚合物家族.
- 为了合理化化物和硫酸盐离子对结构和光辐射特性的影响.
- 研究结构维度,光物理性质和非线性光学 (NLO) 响应之间的关系.
主要方法:
- 合成两个系列的铜 (I) 协调聚合物:[Cu (p-SPhX) ]n和[Cu3Cl (p-SPhX) ]n (X = F,Cl,Br).
- 结构特征以确定维度 (1D与2D).
- 光物理测量以分析固态排放特性,包括反斯托克斯排放.
- 对非中心对称化合物的非线性光学 (NLO) 特性进行评估.
主要成果:
- [Cu(p-SPhX) ]n家族形成具有红色发射的1D协调聚合物.
- [Cu3Cl(p-SPhX) 2n家族形成2D协调聚合物,表现出强烈的绿色反斯托克斯辐射.
- 2D家族中的非中心对称化合物 (X=F,Br) 显示非线性光学 (NLO) 响应.
- 酸连体的弱素相互作用影响对称性和材料特性.
结论:
- 阳离子 (化物和硫酸盐) 的选择显著影响铜 (I) 协调聚合物的结构维度和光物理性质.
- 2D铜化物硫酸盐结构对强烈的绿色抗斯托克斯辐射和NLO应用具有前景.
- 硫酸盐联结体相互作用在调整这些材料的对称性和光学特征方面发挥着至关重要的作用.
更多相关视频
06:08Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera
Published on: December 27, 2018
8.8K
08:51Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core
Published on: October 24, 2017
9.5K
相关概念视频
Photoluminescence: Applications
360
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
360
Photochemical Electrocyclic Reactions: Stereochemistry
1.8K
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
1.8K
Colors and Magnetism
11.4K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
11.4K
![[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F59739.jpg&w=3840&q=50)