Picene
From Wikipedia, the free encyclopedia
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- For the language, see North Picene and South Picene.
| Picene | |
|---|---|
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| IUPAC name | Dibenzo[a,i]phenanthrene |
| Other names | Picene 3,4-Benzchrysene β,β-Binaphthylene ethene |
| Identifiers | |
| CAS number | [213-46-7] |
| SMILES | c12ccccc1c3c(c(ccc5c4cccc5)c4cc3)cc2 |
| Properties | |
| Molecular formula | C22H14 |
| Molar mass | 278.33 g/mol |
| Density | ? g/cm3 |
| Melting point |
366-367 °C |
| Boiling point |
518-520 °C |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Picene is a hydrocarbon found in the pitchy residue obtained in the distillation of peat tar and of petroleum. This is distilled to dryness and the distillate repeatedly recrystallized from cymene. It may be synthetically prepared by the action of anhydrous aluminium chloride on a mixture of naphthalene and 1,2-dibromoethane, or by distilling a-dinaphthostilbene. It crystallizes in large colorless plates which possess a blue fluorescence. It is soluble in concentrated sulfuric acid with a green color. Chromic acid in glacial acetic acid solution oxidizes it to picene-quinone, picene-quinone carboxylic acid, and finally to phthalic acid.
[edit] References
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The references in this article would be clearer with a different or consistent style of citation, footnoting, or external linking. |
- Merck Index, 11th Edition, 7368.
[edit] External links
This article incorporates text from the Encyclopædia Britannica Eleventh Edition, a publication now in the public domain.
