Accession Number : AD0739625

Title :   The Ion Kinetic Energy and Mass Spectra of Isomeric Methyl Indoles,

Corporate Author : NATIONAL RESEARCH COUNCIL OF CANADA HALIFAX (NOVA SCOTIA) ATLANTIC REGIONAL LAB

Personal Author(s) : Safe,S. ; Jamieson,W. D. ; Hutzinger,O.

Report Date : 20 JUL 1971

Pagination or Media Count : 8

Abstract : The mass spectra of the seven isomeric methylindoles were recorded and the (metastable ion)/(daughter ion) ratios for the reactions m/e 130 to m/e 103 and m/e 103 to m/e 77 have been obtained. The ratios indicate that the decomposing (M - 1) ions (m/e 130) from the 4, 5, 6 and 7 isomers are energetically similar as are the (M - 1) ions from the 2 and 3 isomers. The results observed for the m/e 103 to m/e 77 reaction showed that the decomposing m/e 103 ions from the 2, 3, 4, 5, 6 and 7 isomers all have the same energy distribution. N-Methylindole gave ratios which were similar to the 4 to 7 isomers at 70 eV but different at 20 eV. The ion kinetic energy (IKE) spectra of all the isomeric methlindoles were also obtained and the results compared with the data obtained from the (metastable ion)/(daughter ion) approach. (Author)

Descriptors :   (*INDOLES, *MASS SPECTRA), MOLECULAR ISOMERISM, KINETIC ENERGY, CANADA

Subject Categories : Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE