在零维Cu (I) 基金属化物中可逆结构相位过渡,用于动态调节的排放
Ran An1,2, Qishun Wang2, Yuan Liang2,3
1Faculty of Chemistry, Northeast Normal University, Jilin, Changchun, 130024, China E-mail: addresses.
Angewandte Chemie (International ed. in English)
|September 12, 2024
概括
两个新的零维金属化物, (C19H18P) 2CuI3和 (C19H18P) 2Cu4I6,表现出明显的发光和可逆相变. 这些特性使得具有动态色彩转移的独特防伪系统成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 光物理学的光学物理学
背景情况:
- 零维 (0D) 金属化物对于可调节的光学特性至关重要,但在理解它们的发光和相变方面面临挑战.
- 开发具有可控制光学功能的新材料对于先进应用是必不可少的.
研究的目的:
- 设计和合成可相互转换的 0D Cu (I) 基金属化物.
- 阐明它们的发光机制和结构相变.
- 探索它们在防伪应用中的潜力.
主要方法:
- 在不同的条件下合成 (C19H18P) 2CuI3和 (C19H18P) 2Cu4I6.
- 对光学特性和发光的实验性表征.
- 密度函数理论 (DFT) 计算用于机制阐明.
- 研究可逆结构相变的研究.
主要成果:
- 合成了两种可相互转换的0D Cu ((I) 金属化物,即 (C19H18P) 2CuI3和 (C19H18P) 2Cu4I6.
- (C19H18P) 2CuI3 显示自捕获刺激子的明亮辐射 (77% PLQY).
- (C19H18P) 2Cu4I6由于电荷转移效应和Cu-Cu结合而表现出黄色色的光 (83% PLQY).
- 这两种化合物都表现出可逆的结构相变.
结论:
- 该研究提供了对0D金属化物发光机制和相变的洞察.
- 可逆相位转换使得具有颜色转换能力的动态防伪系统成为可能.
- 这项工作为调节光学特性和开发先进光学材料提供了新的策略.
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