Unusual temperature-sensitive excimer fluorescence from discrete π-π dimer stacking of anthracene in a crystal
Unusual temperature-sensitive excimer fluorescence from discrete π-π dimer stacking of anthracene in a crystal
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晶体中蒽离散 pi-pi 二聚体堆积产生的不寻常的温度敏感准分子荧光
DOI：
10.1039/c9cp02656h
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发表时间：
2019-07-21
影响因子：
3.3
通讯作者：
Yang, Bing
中科院分区：
文献类型：
--
作者：
Shen, Yue;Liu, Haichao;Yang, Bing
本文中，从具有离散的p-p蒽二聚体的晶体中观察到不寻常的准分子荧光随温度升高的蓝移，这是因为与单体的分子内几何结构相比，pi-pi二聚体的分子间几何结构（例如pi-pi距离）对温度更敏感，这一点通过温度相关的单晶x射线衍射（XRD）测量得到了证实。
Herein, an unusual blue shift in excimer fluorescence with increasing temperature was observed from a crystal with a discrete p-p anthracene dimer, originating from the more temperature-sensitive intermolecular geometry of the pi-pi dimer (e.g., pi-pi distance) compared to the intramolecular geometry of the monomer, which is confirmed by temperature-dependent single-crystal X-ray diffraction (XRD) measurements.