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The Impact of Aggregation on the Photophysics of Spiro-Bridged Heterotriangulenes.
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2020-05-29 , DOI: 10.1002/anie.202003504 Marcel Krug 1 , Maximilian Wagner 1 , Tobias A Schaub 2 , Wen-Shan Zhang 3 , Christoph M Schüßlbauer 1 , Johannes D R Ascherl 2, 3 , Peter W Münich 1 , Rasmus R Schröder 3 , Franziska Gröhn 1 , Pavlo O Dral 4 , Mario Barbatti 5 , Dirk M Guldi 1 , Milan Kivala 2, 3
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2020-05-29 , DOI: 10.1002/anie.202003504 Marcel Krug 1 , Maximilian Wagner 1 , Tobias A Schaub 2 , Wen-Shan Zhang 3 , Christoph M Schüßlbauer 1 , Johannes D R Ascherl 2, 3 , Peter W Münich 1 , Rasmus R Schröder 3 , Franziska Gröhn 1 , Pavlo O Dral 4 , Mario Barbatti 5 , Dirk M Guldi 1 , Milan Kivala 2, 3
Affiliation
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We report on the impact of the central heteroatom on structural, electronic, and spectroscopic properties of a series of spirofluorene‐bridged heterotriangulenes and provide a detailed study on their aggregates. The in‐depth analysis of their molecular structure by NMR spectroscopy and X‐ray crystallography was further complemented by density functional theory calculations. With the aid of extensive photophysical analysis the complex fluorescence spectra were deconvoluted showing contributions from the peripheral fluorenes and the heteroaromatic cores. Beyond the molecular scale, we examined the aggregation behavior of these heterotriangulenes in THF/H2O mixtures and analyzed the aggregates by static and dynamic light scattering. The excited‐state interactions within the aggregates were found to be similar to those found in the solid state. A plethora of morphologies and superstructures were observed by scanning electron microscopy of drop‐casted dispersions.
中文翻译：
聚集作用对螺旋桥杂三烯光物理性质的影响。
我们报告了中心杂原子对一系列螺芴桥杂三烯的结构，电子和光谱性质的影响，并对其聚集体进行了详细研究。通过核磁共振波谱法和X射线晶体学对其分子结构进行的深入分析得到密度泛函理论计算的进一步补充。借助广泛的光物理分析，对复杂的荧光光谱进行了反卷积，显示了周围芴和杂芳族核的贡献。除了分子规模，我们还研究了这些杂三烯在THF / H 2中的聚集行为混合并通过静态和动态光散射分析聚集体。发现聚集体中的激发态相互作用类似于固态中的激发态相互作用。通过扫描电子显微镜观察滴铸分散液观察到大量的形态和超结构。
更新日期：2020-05-29
中文翻译：
聚集作用对螺旋桥杂三烯光物理性质的影响。
我们报告了中心杂原子对一系列螺芴桥杂三烯的结构，电子和光谱性质的影响，并对其聚集体进行了详细研究。通过核磁共振波谱法和X射线晶体学对其分子结构进行的深入分析得到密度泛函理论计算的进一步补充。借助广泛的光物理分析，对复杂的荧光光谱进行了反卷积，显示了周围芴和杂芳族核的贡献。除了分子规模，我们还研究了这些杂三烯在THF / H 2中的聚集行为混合并通过静态和动态光散射分析聚集体。发现聚集体中的激发态相互作用类似于固态中的激发态相互作用。通过扫描电子显微镜观察滴铸分散液观察到大量的形态和超结构。
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