首页> 外文期刊>Chemistry: A European journal >Enhanced Fluorescence of Remote Functionalized Diaminodicyanoquinodimethanes in the Solid State and Fluorescence Switching in a Doped Polymer by Solvent Vapors
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Enhanced Fluorescence of Remote Functionalized Diaminodicyanoquinodimethanes in the Solid State and Fluorescence Switching in a Doped Polymer by Solvent Vapors

机译:远程官能化的二氨基二氰基喹二甲烷在固态中的增强荧光和掺杂聚合物中的溶剂蒸气的荧光转换

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摘要

Remote functionalized zwit-terionic diaminodicyanoquinodime-thanes are found to exhibit a dramatic enhancement of light emission in the solid state and when doped in polymer films,as compared to the solution state.Crystal structure analysis of prototypical molecules reveals the role of the remote functionality in the solid state molecular organization.Semiem-pirical quantum chemical computations provide a viable model to explain the interesting phenomenon of fluores cence enhancement as arising from the inhibition of geometry relaxation of the vertical excited state to a nonemit-ting state.The reversible switching of a doped polymer film fluorescence triggered by solvent vapors is demonstrated.
机译:与溶液状态相比,发现远程功能化的zwit-叔离子二氨基二氰基喹啉二甲酸酯在固态和掺杂在聚合物薄膜中时能显着增强发光。原型分子的晶体结构分析揭示了远程功能在半柱式量子化学计算提供了一个可行的模型来解释有趣的荧光现象增强现象,该现象是由于垂直激发态向非发光态的几何弛豫受到抑制而引起的。证明了由溶剂蒸气触发的掺杂聚合物薄膜的荧光。

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