Boosting the triplet activity of heavy-atom-free difluoroboron dibenzoylmethane via sp3 oxygen-bridged electron donors

Wenhuan Huang; Xuepeng Zhang; Biao Chen; Hui Miao; Carl O Trindle; Yucai Wang; Yi Luo; Guoqing Zhang

doi:10.1039/c8cc08346k

Boosting the triplet activity of heavy-atom-free difluoroboron dibenzoylmethane via sp³ oxygen-bridged electron donors

Chem Commun (Camb). 2018 Dec 18;55(1):67-70. doi: 10.1039/c8cc08346k.

Authors

Wenhuan Huang¹, Xuepeng Zhang, Biao Chen, Hui Miao, Carl O Trindle, Yucai Wang, Yi Luo, Guoqing Zhang

Affiliation

¹ Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China. gzhang@ustc.edu.cn biaochen@ustc.edu.cn.

PMID: 30506081
DOI: 10.1039/c8cc08346k

Abstract

Purely organic phosphors have important applications in imaging, sensing, informatics and illumination. Methoxy-substituted difluoroboron dibenzoylmethane (BF2dbm) complexes exhibit intense fluorescence with an almost unity quantum yield. Here we show that by simply introducing an sp3 oxygen-bridged methoxylphenyl group as a pendant to BF2dbm, the boron complex exhibits a triplet quantum yield of 0.16, a more than 100-fold increase compared to that of BF2dbm.