helicene

helicene
any polycyclic aromatic or heteroaromatic compound, consisting of at least five ortho-fused rings arranged to give a helically shaped chiral molecule

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  • Helicene — sind eine vom Begriff Helix abgeleitete Stoffgruppe der Chemie.[1] Die Helicene sind aromatische Verbindungen, die formal aus Phenanthren (ein planares Molekül) durch winkelförmige ortho Anellierung entstehen. Die Anzahl der kondensierten… …   Deutsch Wikipedia

  • Helicene — Helicenes in organic chemistry are ortho condensed polycyclic aromatic compounds in which benzene rings or other aromatics are angularly annulated to give helically shaped molecules. The chemistry of helicenes has attracted continuing attention… …   Wikipedia

  • Hélicène — Les hélicènes sont une famille d hydrocarbures aromatiques polycycliques de formule générique C4n+2H2n+4 (où n ≥ 6 représente le nombre de noyaux benzéniques fusionnés) caractérisés par leur géométrie hélicoïdale, d où leur nom. Le… …   Wikipédia en Français

  • Synthetic molecular motors — are molecular machines capable of rotation under energy input. Although the term molecular motor has traditionally referred to a naturally occurring protein that induces motion, some groups also use the term when referring to non biological, non… …   Wikipedia

  • Hexahélicène —   Structure et conformation du (P) hexahélicène. Général …   Wikipédia en Français

  • Corannulene — IUPAC name …   Wikipedia

  • Aromatic hydrocarbon — Arene redirects here. For other uses, see Arene (disambiguation). An aromatic hydrocarbon or arene[1] (or sometimes aryl hydrocarbon)[2] is a hydrocarbon with alternating double and single bonds between carbon atoms. The term aromatic was… …   Wikipedia

  • Naphthalene — Not to be confused with Naphtha, a broad term describing liquid hydrocarbon mixtures. Naphthalene …   Wikipedia

  • Parasympathetic nervous system — The parasympathetic nervous system (PSNS) is a division of the autonomic nervous system (ANS), along with the sympathetic nervous system (SNS) and enteric nervous system (ENS or bowels NS ). The ANS is a subdivision of the peripheral nervous… …   Wikipedia

  • Coronene — Other names …   Wikipedia

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