The synthetic utility of N-fluoro-2,4-dinitro-imidazole NF-2,4-DNF, a recently introduced NF-Fluorinating agent, has been tested for direct one-pot fluorination of several classes of polycyclic aromatic hydrocarbons, PAHs, namely pyrene, crowded alkyl(cycloalkyl)-pyrenes; hexahydro- and tetrahydro-pyrene; benzo[a]anthracene; benzo[a]— and benzo[e]pyrene; perylene; 2,7-di- tert-butylphenanthrene; chrysene; 9-methylhandracene and anthracene, as well as trans-T5:Y6-dimethyl-dihydroyrene: azulene-1,2-a lacenapethylene and azulene. Although the isolated yields are modest, the ease of handling of the reagent, simple operation (reflux in dichloroethane for 3 days) and the use of 1.1 equivalent of the reagent makes the procedure quite attractive for polynuclear aromatics, avoiding multi-step operations (NO 2-PAH → NH 2-PAH → N 2 +-PAH → F-PAH) or the use of toxic or costly reagents (CF 3OF, XeF 2, etc.); it provides direct one-pot access to a variety of F-IPAHs that are not readily made using other fluorinating agents.