Acene


Acene

Acenes or polyacenes is a class of organic compounds and polycyclic aromatic hydrocarbons made up of linearly fused benzene rings. The larger representatives have potential interest in optoelectronic applications and are actively researched in chemistry and electrical engineering. Pentacene has been incorporated into organic field-effect transistors, reaching charge carrier mobilities as high as 5 cm2/Vs.

Its members to date are:
* benzene
* naphthalene (n=0, 2 rings)
* anthracene (n=1)
* tetracene (n=2)
* pentacene (n=3)
* hexacene (n=4)
* heptacene (n=5, 7 rings)

the last members, hexacene and heptacene, are very reactive and has only been isolated in a matrix. However, bis(trialkylsilylethynylated) versions of hexacene and heptacene have been isolated as crystalline solids. [ [http://www3.interscience.wiley.com/journal/117353120/abstract?CRETRY=1&SRETRY=0 The Larger Acenes: Versatile Organic Semiconductors] , 2007, Anthony, J. E., Angewandte Chemie International 47 pp 452-483]

Related compounds

A related group of compounds with 1,2-fused rings and with helical not linear structures are the helicenes. Polyquinanes and quinenes are fused cyclopentane rings.

References


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  • acène — ● acène nom masculin (grec akaina, aiguillon) Hydrocarbure aromatique polycyclique dans lequel les noyaux benzéniques sont accolés de façon linéaire. (Le plus simple est l anthracène.) ⇒ACÈNE, subst. A. BOT., masc. et fém. ,,Genre de plantes… …   Encyclopédie Universelle

  • Acene — Die allgemeine Strukturformel von Acenen Acene zählen in der Chemie zu einer Klasse von organischen Verbindungen, genauer den polycyclischen aromatischen Kohlenwasserstoffen, bestehend aus linear anellierten (kondensierten) Benzol Ringen. Die… …   Deutsch Wikipedia

  • Acène — Formule de structure générale des acènes Les acènes ou polyacènes sont une classe d hydrocarbures aromatiques polycycliques obtenus en fusionnant linéairement des noyaux de benzène. Les six premiers membres non substitués de ce groupe se… …   Wikipédia en Français

  • acene — noun Any polycyclic aromatic hydrocarbon containing a rectilinear arrangement of fused benzene rings. Syn: polyacene …   Wiktionary

  • acène — anthracène …   Dictionnaire des rimes

  • -acene — a·cene …   English syllables

  • -acene — əˌsēn noun suffix ( s) Etymology: International Scientific Vocabulary, from anthracene : aromatic polycyclic hydrocarbon containing three or more fused benzene rings in straight linear sequence naphthacene …   Useful english dictionary

  • Pentacene — Chembox new ImageFile = Pentacene.png ImageSize = IUPACName = Pentacene OtherNames = Section1 = Chembox Identifiers CASNo = 135 48 8 PubChem = 24886995 SMILES = c45cc3cc2cc1ccc cc1cc2cc3cc4cccc5 Section2 = Chembox Properties Formula = C22H14… …   Wikipedia

  • Hexacene — Chembox new ImageFile = Hexacene.svg ImageSize = IUPACName = Hexacene OtherNames = Section1 = Chembox Identifiers CASNo = 258 31 1 PubChem = 123044 SMILES = C1=CC=C2C=C3C=C4C=C5C=C6C=CC=CC6=CC5=CC4=CC3=CC2=C1 Section2 = Chembox Properties Formula …   Wikipedia

  • Annulation — (derived from annular, occasionally annelation) in organic chemistry is a chemical reaction in which a new ring is constructed on another molecule (often another ring). [GoldBookRef|title=annulation|url=http://goldbook.iupac.org/A00367.html… …   Wikipedia