Novel triarylborane compounds exhibit temperature-sensitive dual fluorescence and strong CPL signals, implying potential applications in luminescent materials.
New types of triarylborane compounds (Sp)-MCp, (Sp,Sp)-BCp, and (Sp,Sp,Sp)-TCp containing one to three (Sp)-4-dimethylamino [2.2]paracyclophane units at different phenyl rings of triarylborane were disclosed. These molecules exhibited obvious well-separated temperature-sensitive dual fluorescence characteristics in THF, which is promising and challenging for small organic luminescent molecules. In addition, they displayed intensive circularly polarized luminescence (CPL) signals with a luminescence dissymmetry factor (|glum|) that reached 10-3.
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Zhang et al. (2025) studied this question.
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