HIGHLIGHTS
SUMMARY
The authors have designed and prepared a series of molecular rotors containing a triazine core and three bromobiphenyl units: o-Br-TRZ, m-BrTRZ, and p-Br-TRZ (Fig 1a). Following irradiation with intense UV light, intramolecular rotations of o-BrTRZ, m-Br-TRZ, and p-Br-TRZ increase, resulting in photothermal effects via nonradiative decay. Successively elevated photothermal temperatures, produced via nonradiative decay, were seen on going from o-Br-TRZ to m-BrTRZ to p-Br-TRZ. As shown in Fig 2a-c, o-Br-TRZ emits cyan luminescence, whereas m-Br . . .
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