摘要
有机化合物的结构、构象和环境效应对发光化合物的荧光发射具有重要的影响。本文从化合物激发态的衰变过程出发 ,侧重于过程的光化学与光物理问题对发光行为和机制进行讨论。如 :化合物分子结构的受阻和桥键化对发光的影响 ;光激发下的光诱导电子和电荷转移及其相互转化 ;化合物扭曲的分子内电荷转移 (TICT) ;溶剂分子和发光化合物分子间不同的相互作用及对发光的影响 ;在发光过程中存在着最佳的发光构象等。对于这些问题的研究和掌握 ,将有利于设计和合成具有高荧光量子产率的发光化合物 ,更好地解释在研究中出现的种种现象和在实际工作中应用它们。文章还引用了大量发光化合物作为实例 ,对工作中所得的结果进行了详细讨论。
The molecular structure, configuration and the environmental effect on the fluorescence emission of organic compounds are tremendous important. The emissive behavior and mechanism are discussed with the decay process of excited state of compounds, especially, with the photo-physics and photochemistry, such as the molecular structure hindrance and the bridging structure; the photo-induced charge transfer, electron transfer and their transformation; the twisted intra-molecular charge transfer (TICT); the interaction between emissive molecule and molecule of solvents and the favorable configuration existed in the process of molecular emission. The study and grasp of theory and knowledge in this field will be useful for the design and synthesis of compounds with high fluorescence quantum yield, and will be useful for the explanation of different behaviors occurred in experiments, and for the application of these compounds in different condition. In this paper, a large amount of examples of emissive compounds have been listed and discussed in detail.
出处
《化学进展》
SCIE
CAS
CSCD
北大核心
2005年第1期15-39,共25页
Progress in Chemistry
关键词
发光化合物
辐射衰变过程
分子内电荷转移
电子转移
分子结构
构象
环境效应
emissive compounds
radiation decay process
intra-molecular charge transfer
electron transfer
molecular structure
configuration
environmental effect
