from The Century Dictionary.

  • noun A solid hydrocarbon, C13 H10, contained in portions of coal-tar boiling at 300–400° C. If not quite pure it has a violet fluorescence. Also called orthodiphenylenemethane or 2,2′ -melhylenebiphenyl. It melts at 113° C.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Chem.) A colorless, crystalline hydrocarbon, C13H10 having a beautiful violet fluorescence; whence its name. It occurs in the higher boiling products of coal tar, and is obtained artificially.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun organic chemistry A polycyclic aromatic hydrocarbon consisting of two benzene rings joined together directly, and also via a methylene bridge; it is used in light-emitting diodes.


from Wiktionary, Creative Commons Attribution/Share-Alike License

From its violet fluorescence


  • M.P. 273°-276° C., and yields fluorene on distillation with zinc dust.

    Synthetic Tannins

  • C. Distillation with zinc dust yields fluorene (see above) --

    Synthetic Tannins

  • The latter reaction especially illustrates the analogous formation of fluorene from compounds of the type --

    Synthetic Tannins

  • On the nature of the fluorenone-based emission in oxidized poly (dialkyl-fluorene) s all content

  • Gibson, D.T.: Regio - and stereospecific oxidation of fluorene, dibenzofuran, and dibenzothiophene by naphthalene dioxygenase from Pseudomonas sp. strain NCIB 9816-4.

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  • (84-87% (1R,2S) - cis-1,2-dihydroxy-dihydrodiben - zothiophene, enantiomeric excess greater than 95%, 15% dibenzothio - phene sulfoxide [16]) [16] S fluorene + NADH + O2

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