Aromatic Electrophilic Directing for Fluorescence and Room-Temperature Phosphorescence Modulation

• DOI: 10.1021/acs.jpclett.1c00520
• Publication Date: 2021-03-23T11:41:21Z
• Authors: Xiancheng Nie; Hao Su; Tao Wang; Hui Miao; Biao Chen; Guoqing Zhang
• Keywords: Modulation (music)

The ability to modulate luminescence is crucial for organic light-emitting molecules. However, the correlation between molecular structure and emission not always obvious systematic. Here, using a well-established empirical rule on electrophilic substitution involving directing groups in chemistry, we present model system, where two luminophores are covalently linked benzene ortho, meta, para each other, demonstrate that can also be useful predicting fluorescence phosphorescence behaviors of these disubstituted ring works as "molecular wire" transduces electron density when form ortho- para-isomers, while little no transduction noted meta-isomer, based chemistry. We anticipate many more "textbook examples" electronic chemistry used systematic modulation room-temperature phosphorescence.