Chen YWang C.-HChou T.-CPI-TAI CHOU2022-12-142022-12-14202214337851https://www.scopus.com/inward/record.uri?eid=2-s2.0-85124536488&doi=10.1002%2fanie.202109224&partnerID=40&md5=da66407da7fd9457fbc698d767e207a6https://scholars.lib.ntu.edu.tw/handle/123456789/626233A series of β-hydroxy-vinylimine boron compounds 1–7 have been reported to exhibit unique dual emission, consisting of fluorescence and room temperature phosphorescence (RTP) in solution. This finding triggered intensive research of RTP in β-hydroxy-vinylimine boron derivatives. Herein, we show clear evidence that the associated dual emission, especially RTP, is caused by the experimental artifact, where bright emission intensity saturates the detection dynamic range of the fluorimeter. © 2022 Wiley-VCH GmbHdual emission; lasing; room temperature phosphorescence (RTP); thermally activated delayed fluorescence (TADF); β-hydroxy-vinylimine boron compoundsPhosphorescence; Dual emissions; Emission efficiencies; High tunability; Lasings; Metal free; Room temperature phosphorescence; Thermally activated delayed fluorescence; Thermally activated delayed fluorescences; Β-hydroxy-vinylimine boron compound; Fluorescenceletter10.1002/anie.202109224351327622-s2.0-85124536488