Working Paper
Authors
- Zhongtao Feng
Nanjing University ,
- Yuanyuan Chong ,
- Shuxuan Tang ,
- Huapeng Ruan ,
- Yong Fang ,
- Yue Zhao ,
- Jun Jiang ,
- Xinping Wang
Abstract
It is highly urgent to develop synthetic strategies to make new category of stable luminescent radicals with desired emission wavelength. In this study, we have isolated two dioxoborocyclic radicals ( 3 and 4 ) by a direct sy nthetic rou te. They were charac terized by UV, EPR spectroscopy and SQUID measurements. Their structures were obtained by single crystal X ray diffraction. Both radicals produce blue photoluminescence (458 nm for 3 and 478 nm for 4 ) by radiative decay from higher excited states (D2/D3) to the ground state (D0) based on theoretical calculation, breaking Kasha rule. The work records a new kind of radical emitters and the first stable radicals with blue emission bands.
Content

Supplementary material

SI CHEMRXIV