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Normalized absorption (solid lines) and emission (dotted traces) spectra of 1,4‐azaborines 102 (green) and 103 (red) and their carbonaceous analogs 100 (black) and 101 (purple) in THF at 10 × 10‐6 m. Reproduced with permission.[ 19 ] Copyright 2016, Wiley‐VCH.
