Pt(II) 显示纳米颗粒溶液中的多色辐射和固态可逆研磨和加热诱导发光转换的复合体
Xin-Tong Lv1, Dong Zheng2,3, Fu-Shun Wan1
1State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China.
Chemistry (Weinheim an der Bergstrasse, Germany)
|February 7, 2025
概括
合成了三种 (II) 复合物,并研究了它们的发光. 分子间相互作用显著影响了它们的发射颜色和特性,其中一个复合体显示可逆发光切换.
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:
- (II) 复合物的发光对分子间相互作用很敏感.
- 了解这些相互作用是设计新型发光材料的关键.
研究的目的:
- 合成和表征三种 (II) 复合物,具有不同的辅助连接体.
- 研究分子间相互作用 (π⋅⋅π,Pt-Pt) 对它们的发光特性的影响.
- 探索刺激响应材料中的潜在应用.
主要方法:
- 三种 (II) 复合物的合成:[Pt (moppy) Cl (L) ],其中L=SET2 (1),异酸环 (iccy, 2),和异酸纳 (icna, 3).
- 晶体结构分析以确定超分子排列 (二极管,链).
- 在混合CH3CN-H2O溶剂中的发光光谱学,含有不同水分的溶剂.
- 对刺激反应发光的研究 (研磨,加热).
主要成果:
- 复合体1-3在混合溶剂中纳米粒子形成时表现出增强的发光.
- 综合体1显示绿色排放,而综合体2和3显示多色排放 (分别是蓝色到黄色绿色,蓝绿色到色红色),水分增加.
- 综合体3展示了可逆发光在启动 (色-红色) 和关闭状态之间切换,由研磨和加热触发.
结论:
- 分子间的π⋅⋅⋅π和Pt-Pt相互作用在调节这些 (II) 复合物的发光方面发挥着至关重要的作用.
- 辅助配体的选择显著影响了超分子结构和由此产生的光物理性质.
- 综合体3显示了开发可切换发光材料的潜力.
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