Abstract
Abstract Nitromethane selectively quenches fluorescence emission of alternant polycyclic aromatic hydrocarbons (PAHs) via an electron transfer mechanism. Emission intensities of nonalternant PAHs, for the most part, are unaffected. To better understand the quenching mechanism, the fluorescence behavior of 1-methylpyrene, 2-methylpyrene, 4-methylpyrene, 1,5-dimethylpyrene, 1-butylpyrene, 1-decylpyrene, 1-pyrenebutanoic acid, 1-chloropyrene, 1-aminopyrene, 3,4,5-trihydrobenzo[cd]pyrene, 1-pyrenecarboxaldehyde, 1,3-pyrenedicar-boxaldehyde, 3,6-dicyanobenzo[e]pyrene, 5,6,7,8,9,10-hexahydrobenzo[ghi]perylene, 4H-benzo[e]cyclopenta [1]pyrene, 3,4-dihydrobenzo[ghi]perylene, 4,5,6,7-tetrahydro-4,7-methanodibenzo[fg,op] naphthacene, 8b,9,10,11,12,12a-hexahydro-9,12-methanobenzo[e]pyrene, 5-methyldibenzo[b,def]chrysene, 5-methyl-chrysene, 4-methylchrysene, 2-methylanthracene, 9,9′-bianthracene-10-carboxaldehyde, 3-perylenecar-boxaldehyde, and 1-acetylcoronene dissolved in neat acetonitrile, toluene-acetonitrile and...
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