Utilizing d-pπ Bonds for Ultralong Organic Phosphorescence

Angewandte Chemie
Shuai TianWei Huang

Abstract

Developing pure organic materials with ultralong lifetimes is attractive but challenging. Here we report a concise chemical approach to regulate the electronic configuration for phosphorescence enhancement. After the introduction of d-pπ bonds into a phenothiazine model system, a phosphorescence lifetime enhancement of up to 19 times was observed for DOPPMO, compared to the reference PPMO. A record phosphorescence lifetime of up to 876 ms was obtained in phosphorescent phenothiazine. Theoretical calculations and single-crystal analysis reveal that the d-pπ bond not only reduces the (n, π*) proportion of the T1 state, but also endows the rigid molecular environment with multiple intermolecular interactions, thus enabling long-lived phosphorescence. This finding makes a valuable contribution to the prolongation of phosphorescence lifetimes and the extension of the scope of phosphorescent materials.

References

Aug 12, 2009·Nature Materials·Guoqing ZhangCassandra L Fraser
Jun 28, 2011·Journal of the American Chemical Society·Thomas MaldineyDaniel Scherman
Mar 26, 2013·Journal of the American Chemical Society·Dongwook LeeJinsang Kim
Feb 18, 2014·Chemical Society Reviews·Hui XuXiaogang Liu
Apr 8, 2015·Nature Materials·Zhongfu AnWei Huang
Nov 26, 2015·Advanced Materials·Ryota KabeChihaya Adachi
Sep 17, 2016·Advanced Materials·Shen XuWei Huang
Nov 12, 2016·Chemical Society Reviews·Zhiguo Xia, Andries Meijerink
Jan 31, 2017·Journal of the American Chemical Society·Yoshiaki ShojiTakanori Fukushima
Dec 20, 2018·Journal of the American Chemical Society·Huili MaZhigang Shuai

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Citations

Dec 19, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Xiao-Gang YangLu-Fang Ma
Dec 4, 2019·Chemistry : a European Journal·Zhongfu AnWei Huang
Feb 8, 2020·Chemistry, an Asian Journal·Jiahuan ZhiWei Huang
Feb 12, 2020·Angewandte Chemie·Jian-Xin WangQing-Zheng Yang
Mar 12, 2020·Chemistry : a European Journal·Lili HuangZhiyong Ma
Feb 18, 2021·Angewandte Chemie·Haoyue ZhengPeng Wu
Jun 25, 2021·Chemical Science·Aakash D NidhankarSukumaran Santhosh Babu
Jul 29, 2021·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Numan HasanZhiyong Ma
Sep 21, 2019·The Journal of Physical Chemistry Letters·Jiaxuan WangYue Wang
Aug 29, 2021·Angewandte Chemie·Wei ZhengHong Liu

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