Synthesis of Some New Heterocyclic Compounds [(-1,3,4-oxadiazole), (1,3,4-oxadiazole-2-thiol), (1,3,4-thiadiazole), (1,2,4-triazin-5-one), (1,2,4-triazole-3-thiol)] containing Fluorine moiety, Derived from 9H-fluorene-2-carboxylic acid . Latakia University Journal -Basic Sciences Series, v. 46, n. 3, p. 59–76, 2 Nov.2024.