Accession Number:

ADA235574

Title:

Formation of C10H8+ from the Benzene Radical Cation: A Case for the Growth of Polycyclic Aromatic Hydrocarbon Ions by Ion/Molecule Reactions in the Gas Phase?

Descriptive Note:

Technical rept. no. 33, Apr 1989-Oct 1990

Corporate Author:

FLORIDA UNIV GAINESVILLE DEPT OF CHEMISTRY

Report Date:

1991-05-10

Pagination or Media Count:

21.0

Abstract:

Experimental results are reported which show that diacetylene, but acetylene, adds rapidly to C6H6 in the gas phase in helium at 0.35 Torr and 296 when C6H6 is produced by the chemical ionization of benzene with NO. The experiments were performed with the selected-ion flow tube SIFT and Fourier transform ion cyclotron resonance FTICR techniques. Chemical reactivity and ion photodissociation methods were employed to investigate the identity of the C10H8 produced by the addition reaction. Results were obtained for the reactions of this cation with deuterium, acetylene, diacetylene, styrene, trimethylamine, nitric oxide, 1,2,4,5-tetramethylbenzene and p-methylaniline, and were compared with the results of the reactions of these same molecules with the C10H8 radical cation produced directly from naphthalene by chemical ionization with Si and electron ionization.

Subject Categories:

  • Organic Chemistry
  • Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE