A new typical phenothiazine compound functionalized with thienyl-indandione derivative (PTZTID) was synthesized and characterized using spectral analysis (ultraviolet-visible (UV-vis) light, infrared (IR), 1 H nuclear magnetic resonance (NMR) and 13 C NMR tools). The UV-vis absorption spectra of the PTZTID solution in 1,4-dioxane showed two absorption bands attributed to localized aromatic π-π* transitions of conjugated aromatic moieties and intramolecular charge transfer with the characteristics of a π-π* transition. The fluorescence spectra exhibited a maximum emission wavelength at 580 nm. The effect of concentration on photophysical properties took the form of a minor hypsochromic shift, which was attributed to some extent to the occurrence of H-type aggregation of the PTZTID derivative. Binary solvent effects on the spectroscopic behaviour of PTZTID were measured at different H2 O/1,4-dioxane ratios. Similarly, when increasing the water content, a hypsochromic shift was observed that resulted from H-type aggregation. Furthermore, geometry and electronic configurations of PTZTID were studied at density functional theory /B3LYP level and indicated that the compound had a nonplanar (butterfly structure).

中文翻译：

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新型基于荧光吩噻嗪的衍生物的合成和光物理研究。

合成并用光谱分析（紫外可见（UV-vis）光，红外（IR），1 H核磁共振（NMR）和13 C NMR工具）表征了一种新的用噻吩基-茚满二酮衍生物（PTZTID）功能化的典型吩噻嗪化合物。 ）。PTZTID溶液在1,4-二恶烷中的UV-vis吸收光谱显示出两个吸收带，这两个吸收带归因于共轭芳族部分的局部芳族π-π*跃迁和分子内电荷转移，具有π-π*跃迁的特征。荧光光谱在580nm处显示最大发射波长。浓度对光物理性质的影响采取轻微的变色位移的形式，这在一定程度上归因于PTZTID衍生物的H型聚集的发生。在不同的H2 O / 1,4-二恶烷比率下，测量了二元溶剂对PTZTID光谱行为的影响。类似地，当增加水含量时，观察到由H型聚集导致的变色位移。此外，在密度泛函理论/ B3LYP水平上研究了PTZTID的几何构型和电子构型，表明该化合物具有非平面（蝴蝶结构）。