Accession Number : ADA183648
Title : Reactions of C3H3+ with Acetylene and Diacetylene in the Gas Phase.
Descriptive Note : Technical rept. 1 Sep 85-1 Sep 86,
Corporate Author : FLORIDA UNIV GAINESVILLE DEPT OF CHEMISTRY
Personal Author(s) : Ozturk,F ; Baykut,G ; Moini,M ; Eyler,J R
PDF Url : ADA183648
Report Date : 29 Jul 1987
Pagination or Media Count : 16
Abstract : The reactions of linear C3H3(+) with acetylene, diacetylene and deuterated acetylene were investigated using a Fourier transform ion cyclotron resonance (FTICR) mass spectrometer. A rate coefficient of (1.4 + 0.7) X 10 to the 9th cc/s was obtained for the reaction of linear C3H3(+) with diacetylene while no production of larger ions was observed with acetylene. Using the ejection capabilities of FTICR, reactions of different C3H3+ precursors with C2H2 were studied in order to investigate possible production of C5H5+ from ionic sources other than C3H3+ present in the reaction medium. Linear C3H3+ isomerized to the cyclic form in reactions with both acetylene and diacetylene. The isomerization was shown to take place via a long-lived C5H5+ complex by isotope exchange reactions between linear C3H3 and deuterated acetylene. Results are discussed in relation to previous work involving C3H3+ reactions and a proposed ionic route to soot formation. Keywords: Fourier transform, Ion cyclotron resonance, Mass spectrometry, Hydrocarbon ions, Soot formation.
Descriptors : *ACETYLENE, *GASES, *PROPYL RADICALS, FOURIER TRANSFORMATION, HYDROCARBONS, IONS, EXCHANGE REACTIONS, ISOTOPE EXCHANGE, MASS SPECTROMETRY, COEFFICIENTS, RATES, SOOT, EJECTION, CYCLOTRON RESONANCE, ISOMERIZATION, PRODUCTION, RESPONSE, CYCLIC COMPOUNDS, CHEMICAL REACTIONS
Subject Categories : Organic Chemistry
Distribution Statement : APPROVED FOR PUBLIC RELEASE