1.02010-04-08 22:06:25 UTC2019-11-26 03:00:16 UTCFDB004845PolyacetylenePolyacetylene is also known as ethyne or ethin. Polyacetylene can be found in german camomile and roman camomile, which makes polyacetylene a potential biomarker for the consumption of these food products. Polyacetylene (IUPAC name: polyethyne) usually refers to an organic polymer with the repeating unit (C2H2)n. The name refers to its conceptual construction from polymerization of acetylene to give a chain with repeating olefin groups. This compound is conceptually important as the discovery of polyacetylene and its high conductivity upon doping helped to launch the field of organic conductive polymers. The high electrical conductivity discovered by Hideki Shirakawa, Alan Heeger, and Alan MacDiarmid for this polymer led to intense interest in the use of organic compounds in microelectronics (organic semiconductors). This discovery was recognized by the Nobel Prize in Chemistry in 2000. Early work in the field of polyacetylene research was aimed at using doped polymers as easily processable and lightweight "plastic metals". Despite the promise of this polymer in the field of conductive polymers, many of its properties such as instability to air and difficulty with processing have led to avoidance in commercial applications .[CH(ch)]AcetylenAcetyleneAcetylene, dissolved [UN1001] [Flammable gas]AzetylenCarbon (C2)CH#CHDicarbonETDEthenyleneEthenylene groupEthinEthineEthyneEthyne, homopolymerHC#CHNarcylenVinyleneWelding gasC2H226.037326.015650064acetyleneacetylene74-86-2C#CInChI=1S/C2H2/c1-2/h1-2HHSFWRNGVRCDJHI-UHFFFAOYSA-N belongs to the class of organic compounds known as acetylides. Acetylides are compounds arising by replacement of one or both hydrogen atoms of acetylene (ethyne) by a metal or other cationic group. E.g. NaC#CH monosodium acetylide. By extension, analogous compounds derived from terminal acetylenes, RC#CH. The class is limited here to derivatives of acetylene where the hydrogen atom is replaced with an element with similar or lower electronegativity that carbon.AcetylidesOrganic compoundsAcetylidesAliphatic acyclic compoundsAlkynesUnsaturated aliphatic hydrocarbonsAcetyleneAcetylideAcyclic acetyleneAliphatic acyclic compoundAlkyneHydrocarbonUnsaturated aliphatic hydrocarbonUnsaturated hydrocarbona small moleculealkyneterminal acetylenic compoundlogp-0.03logs-1.65solubility5.82e-01 g/llogp0.15iupacacetyleneaverage_mass26.0373mono_mass26.015650064smilesC#CformulaC2H2inchiInChI=1S/C2H2/c1-2/h1-2HinchikeyHSFWRNGVRCDJHI-UHFFFAOYSA-Npolar_surface_area0refractivity8.57polarizability2.88rotatable_bond_count0acceptor_count0donor_count0physiological_charge0formal_charge0Specdb::CMs105409Specdb::CMs117483Specdb::NmrOneD193797Specdb::NmrOneD193798Specdb::NmrOneD193799Specdb::NmrOneD193800Specdb::NmrOneD193801Specdb::NmrOneD193802Specdb::NmrOneD193803Specdb::NmrOneD193804Specdb::NmrOneD193805Specdb::NmrOneD193806Specdb::NmrOneD193807Specdb::NmrOneD193808Specdb::NmrOneD193809Specdb::NmrOneD193810Specdb::NmrOneD193811Specdb::NmrOneD193812Specdb::NmrOneD193813Specdb::NmrOneD193814Specdb::NmrOneD193815Specdb::NmrOneD193816Specdb::MsMs74169Specdb::MsMs74170Specdb::MsMs74171Specdb::MsMs133479Specdb::MsMs133480Specdb::MsMs133481Specdb::MsMs3433113Specdb::MsMs3433114Specdb::MsMs3433115Specdb::MsMs3433116Specdb::MsMs3433117Specdb::MsMs3433118German camomileType 1specificMatricaria recutita127986Roman camomileType 1specificChamaemelum nobile99037