- Acene
Acenes or polyacenes is a class of
organic compound s andpolycyclic aromatic hydrocarbon s made up of linearly fused benzene rings. The larger representatives have potential interest in optoelectronic applications and are actively researched inchemistry andelectrical 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 andheptacene , 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
helicene s.Polyquinane s and quinenes are fused cyclopentane rings.References
Wikimedia Foundation. 2010.
См. также в других словарях:
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
