一个新的中央七成员BOPYO:合成,光学特性和优化BF2去除
Xuan Wang1, Cong Hu1, Debo Liu1
1College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Hubei, Yichang 443002, PR China.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
|September 22, 2023
概括
研究人员合成了具有双态发射的新型七环N,O-化BF2复合体 (BOPYO). 在溶液中,BOPYO-2显示出更高的光量子产量,而BOPYO显示出色至深红色的固态辐射.
科学领域:
- 有机化学 有机化学
- 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:
- 二化物 (BF2) 复合物以其优良的光学特性而闻名.
- 由于不稳定性,研究七环N,O-化BF2复合体具有挑战性.
- 新型BF2复合体对于开发先进光学材料至关重要.
研究的目的:
- 为了合成和表征新的七个成员环N,O-化BF2复合物 (BOPYO).
- 调查这些BOPYO在溶液和固态中的双态排放特性.
- 探索影响它们光学性能的因素,包括结构修改和分子内电荷转移.
主要方法:
- 容易合成新的N,O-化BF2复合物.
- 测量光学属性 (光量子产量,辐射光谱) 在溶液 () 和固体状态.
- 单晶结构分析和密度函数理论 (DFT) 计算.
- 优化BF2去除用于前体合成的方法.
主要成果:
- 一系列具有双态排放的新型七个环N,O-化BF2复合体 (BOPYOs) 已成功合成.
- 与BOPYO-1,3-5.5相比,BOPYO-2在烯中表现出显著更高的光量子产量.
- BOPYO-6和BOPYO-7显示出红移发射,由于结构扭曲或ICT,光强度较弱.
- BOPYOs在色到深红色区域 (596-686 nm) 显示了中度的固态发射.
- 在固态中,BOPYO-2具有最低的光量子产量.
- 在没有额外的催化剂的情况下,BF2的去除以获得前体被优化在protic溶剂中.
结论:
- 合成的BOPYO代表了一种新型的七个环N,O-化BF2复合物的新型类别,具有可调节的双态发射.
- 结构修改和ICT效应显著影响溶液中的BOPYO的光物理特性.
- BOPYOs在光电子领域的潜在应用中表现出有希望的固态排放特性.
- 开发的去除BF2的方法为获得相应的前体提供了一个简单的途径.
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