Information AboutFluorene |
| CATEGORIES ABOUT FLUORENE | |
| molecular electronics | |
| polycyclic aromatic hydrocarbons | |
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Fluorene, or '''9H-fluorene''', is a Polycyclic Aromatic Hydrocarbon . It has the form of odorless white crystals. It is combustible. It has a violet Fluorescence , which gave it its name. It is manufactured artificially, although it occurs in the higher boiling fractions of Coal Tar . It is insoluble in water and soluble in Benzene and Ether . Fluorene is used to make Dye s, Plastic s, and Pesticide s. It can be found in Corn Silk and engine Exhaust Gas . It is used for production of Fluorenone and Fluorene-9-methanol . Poly(fluorene) is commonly used as a Luminophore in Organic Light-emitting Diode s. Fluorene copolymers are being investigated as materials for Solar Cell s. The protons in the 9-position of the fluorene ring are acidic ( PKa = 22.6 in DMSO Equilibrium acidities in dimethyl sulfoxide solution, F. G. Bordwell, ''Acc. Chem. Res.''; 1988; 456-463, ) and removal of one of them with a strong Base , such as N-butyllithium , leads to the stable fluorenyl anion, which is Aromatic and has an intense orange colour. The anion is a Nucleophile and most Electrophiles react with it by adding to the 9-position. Fluorene should not be confused with Fluorone , nor with the Element Fluorine . REFERENCES EXTERNAL LINKS
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