二苯甲酰甲烷二氟化硼与苯的溶剂化物的发光：聚集体形成
Luminescence of solvate of boron difluoride dibenzoylmethanate with benzene: aggregates formation.
作者信息
Fedorenko E V, Mirochnik A G, Lvov I B, Vovna V I
机构信息
Institute of Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, 159, Prosp. 100-letiya Vladivostoka, Vladivostok 690022, Russian Federation.
Institute of Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, 159, Prosp. 100-letiya Vladivostoka, Vladivostok 690022, Russian Federation.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2014;120:119-25. doi: 10.1016/j.saa.2013.10.016. Epub 2013 Oct 12.
The concentration dependence of spectral-luminescence properties of solutions boron difluoride dibenzoylmethanate (DBMBF2) in benzene and chloroform has been studied through stationary and time-resolved emission spectroscopy methods. The formation of J-aggregates in the solution of DBMBF2 in chloroform has been revealed and a crystalline adduct of DBMBF2 with benzene has been obtained. A bright blue adduct luminescence is due only to the luminescence of J-aggregates, unlike the crystals of DBMBF2, for which the luminescence of excimers and J-aggregates has been observed. The quantum chemistry simulation of geometric and electronic structure of the DBMBF2 С6Н6 solvate has been performed, and the absorption spectra of DBMBF2 and it is adduct have been calculated.
通过稳态和时间分辨发射光谱法研究了二苯甲酰甲烷二氟化硼（DBMBF2）在苯和氯仿溶液中的光谱发光性质与浓度的关系。揭示了DBMBF2在氯仿溶液中形成J-聚集体，并得到了DBMBF2与苯的晶体加合物。与DBMBF2晶体不同，明亮的蓝色加合物发光仅归因于J-聚集体的发光，在DBMBF2晶体中观察到了准分子和J-聚集体的发光。对DBMBF2·C6H6溶剂化物的几何和电子结构进行了量子化学模拟，并计算了DBMBF2及其加合物的吸收光谱。
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