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Table 4.

Summary of dehydrogenation reactions for PAHs.

Loss channel NC < 32 NC ≥ 32
Trio/Bay Duo/Quarto Trio/Bay Duo/Quarto
Aromatic H-loss
Aromatic H2-loss
Aliphatic H-loss
Aliphatic H2-loss
Bay-region H2-loss


Black and red tick marks correspond to the first and second loss channel, respectively. Solo hydrogens can only be lost via aromatic H-loss.

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