关于新型F-BSD化合物F-BSD化合物的溶剂极性相关激发状态质子转移行为的计算探索
Jiahe Chen1, Jinfeng Zhao2,3, Hao Dong4
1College of Physical Science and Technology, Shenyang Normal University, Shenyang, 110034, China.
Journal of molecular modeling
|June 24, 2024
概括
溶剂的极性影响了替代-bis () -1,5-二氨酸纳 (F-BSD) 光体中的激发状态内分子双质子转移 (ESIDPT). 极性溶剂倾向于第一个ESIDPT步骤,而非极性溶剂倾向于第二个,使得量身定制的发光材料设计成为可能.
科学领域:
- 摄影化学和光物理
- 超分子化学 超分子化学
- 计算化学计算化学
背景情况:
- 替代 bis ((salicylidene) -1,5-diaminonaphthalene (F-BSD) 衍生物在光化学和光物理方面表现有前途.
- 了解F-BSD中的光诱导兴奋状态反应对于开发新材料至关重要.
研究的目的:
- 为了研究溶剂极性的影响激发状态内分子双质子转移 (ESIDPT) 在F-BSD光体.
- 阐明ESIDPT的机制,包括键和电荷重组.
- 探索基于依赖溶剂的ESIDPT的设计新型发光材料的潜力.
主要方法:
- 密度函数理论 (DFT) 和时间依赖 DFT (TDDFT) 计算使用 D3-B3LYP/TZVP 理论水平.
- IEFPCM溶剂模型模拟S0和S1状态的多种溶剂极性.
- 构建潜在能量表面 (PES) 和寻找过渡状态 (TS) 以分析反应路径.
主要成果:
- 溶剂极性通过结和电荷再组合在F-BSD中显著调节ESIDPT.
- 通过双重分子内键,F-BSD呈现逐步ESIDPT.
- 极性溶剂有利于ESIDPT的第一步,而非极性溶剂有利于第二步.
结论:
- 溶剂极性是F-BSD系统中控制ESIDPT的一个关键因素.
- 极性和非极性溶剂的不同行为为设计可调节的发光材料提供了一条途径.
- 这项研究提供了对先进功能材料合理设计的见解.
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