荧光有机染料在新型“智能”材料的创造中发挥着重要作用。能够围绕单键自由旋转的片段和官能团可以在分析物效应、相态转变或温度、压力和介质极性变化下显着改变荧光有机染料的电子结构。在从解决方案到固态的转变过程中,空间和电子结构之间的依赖性变得非常重要。由于氢键、π···π 和偶极-偶极相互作用等超分子缔合物的形成,这种转变伴随着染料分子结构刚性的显着增加。在这些超分子效应中,氢键相互作用首先会导致松散或刚性结构之间发生显着的分子堆积变化,从而影响荧光染料的电子态能量和构型、荧光信号的位置和强度。有机染料中遇到的所有官能团和杂原子似乎都通过氢键参与荧光控制:CH···N, CH···π, S = O···HC, P = O ···H, CH···O, NH···N, C - H···C, C - H···Se, N–H···O, C - H···F, CF ···H。荧光有机染料的分子堆积效应成功用于开发机械、压电、热荧光染料材料,用于信息的光学记录、传感器、安全项目、存储元件、有机发光二极管 (OLED) 技术. 有机染料中遇到的所有官能团和杂原子似乎都通过氢键参与荧光控制:CH···N, CH···π, S = O···HC, P = O ···H, CH···O, NH···N, C - H···C, C - H···Se, N–H···O, C - H···F, CF ···H。荧光有机染料的分子堆积效应成功用于开发机械、压电、热荧光染料材料,用于信息的光学记录、传感器、安全项目、存储元件、有机发光二极管 (OLED) 技术. 有机染料中遇到的所有官能团和杂原子似乎都通过氢键参与荧光控制:CH···N, CH···π, S = O···HC, P = O ···H, CH···O, NH···N, C - H···C, C - H···Se, N–H···O, C - H···F, CF ···H。荧光有机染料的分子堆积效应成功用于开发机械、压电、热荧光染料材料,用于信息的光学记录、传感器、安全项目、存储元件、有机发光二极管 (OLED) 技术.
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Control of Fluorescence of Organic Dyes in the Solid-State by Supramolecular Interactions
Fluorescent organic dyes play an essential role in the creation of new "smart" materials. Fragments and functional groups capable of free rotation around single bonds can significantly change the fluorescent organic dye's electronic structure under analyte effects, phase state transitions, or changes in temperature, pressure, and media polarity. Dependencies between steric and electronic structures become highly important in transition from a solution to a solid-state. Such transitions are accompanied by a significant increase in the dye molecular structure's rigidity due to supramolecular associates' formation such as H-bonding, π···π and dipole–dipole interactions. Among those supramolecular effects, H-bonding interactions, first of all, lead to significant molecular packing changes between loose or rigid structures, thus affecting the fluorescent dye's electronic states' energy and configuration, its fluorescent signal's position and intensity. All the functional groups and heteroatoms that are met in the organic dyes seem to be involved in the control of fluorescence via H-bonding: C-H···N, C-H···π, S = O···H-C, P = O···H, C-H···O, NH···N, C − H···C, C − H···Se, N–H···O, C − H···F, C-F···H. Effects of molecular packing of fluorescent organic dyes are successfully used in developing mechano-, piezo-, thermo- fluorochromes materials for their applications in the optical recording of information, sensors, security items, memory elements, organic light-emitting diodes (OLEDs) technologies.