High stability and luminescence efficiency in donor–acceptor neutral radicals not following the Aufbau principle

@article{Guo2019HighSA,
  title={High stability and luminescence efficiency in donor–acceptor neutral radicals not following the Aufbau principle},
  author={Haoqing Guo and Qiming Peng and Xian-Kai Chen and Qinying Gu and Shengzhi Dong and E. W. Evans and Alexander J. Gillett and Xin Ai and Ming Zhang and Dan Credgington and Veaceslav Coropceanu and Richard H. Friend and Jean‐Luc Br{\'e}das and Feng Li},
  journal={Nature Materials},
  year={2019},
  volume={18},
  pages={977 - 984}
}
With their unusual electronic structures, organic radical molecules display luminescence properties potentially relevant to lighting applications; yet, their luminescence quantum yield and stability lag behind those of other organic emitters. Here, we designed donor–acceptor neutral radicals based on an electron-poor perchlorotriphenylmethyl or tris(2,4,6-trichlorophenyl)methyl radical moiety combined with different electron-rich groups. Experimental and quantum-chemical studies demonstrate… 
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