Yang Liuqing, Koo Donghyun, Wu Jackie, Wong Jonathan M, Day Tyler, Zhang Ruizhong, Kolongoda Harshana, Liu Kehan, Wang Jian, Ding Zhifeng, Pagenkopf Brian L
Department of Chemistry, The University of Western Ontario, 1151 Richmond St., London, N6A 5B7, ON, Canada.
Chemistry. 2020 Sep 10;26(51):11715-11721. doi: 10.1002/chem.202002647. Epub 2020 Aug 7.
Crystallization-induced emission enhancement (CIEE) was demonstrated for the first time for electrochemilunimescence (ECL) with two new benzosiloles. Compared with their solution, the films of the two benzosiloles gave CIEE of 24 and 16 times. The mechanism of the CIEE-ECL was examined by spooling ECL spectroscopy, X-ray crystal structure analysis, photoluminescence, and DFT calculations. This CIEE-ECL system is a complement to the well-established aggregation-induced emission enhancement (AIEE) systems. Unique intermolecular interactions are noted in the crystalline chromophore. The first heterogeneous ECL system is established for organic compounds with highly hydrophobic properties.
首次利用两种新型苯并硅杂环戊二烯证明了结晶诱导发光增强（CIEE）用于电化学发光（ECL）。与它们在溶液中的情况相比，这两种苯并硅杂环戊二烯的薄膜产生的CIEE分别为24倍和16倍。通过盘绕式ECL光谱、X射线晶体结构分析、光致发光和密度泛函理论计算研究了CIEE-ECL的机理。这种CIEE-ECL体系是对成熟的聚集诱导发光增强（AIEE）体系的补充。在结晶发色团中发现了独特的分子间相互作用。首次为具有高疏水性的有机化合物建立了非均相ECL体系。
