JMSSJ On-line

JMSSJ On-line, Vol. 44 (1996) No. 2, pp. 175-181

Mass Spectrometric Investigation of Structures of Intermediates in Acridine Chemiluminescence^†		>> Full Text PDF >> References
Tatsuki MATSUNO, Takashi HIRANO, and Mamoru OHASHI ^† Dedicated to the late Professor Toshio Sugiura. ^* Department of Applied Physics and Chemistry, The University of Electro-Communications (Chofu, Tokyo 182, Japan)

Liquid secondary ionization mass spectra (LSIMS) of methylsulfate salts of phenyl, isopropyl, and methyl 10-methyl-acridinium-9-carboxylate were examined under chemiluminescent conditions. Under chemiluminescence conditions, oxygenated acrydinium ions [M + 16]⁺ were observed, whose structures were elucidated as 9-oxy derivatives on the basis of their fragmentation processes obtained by linked scanning at constant B/E. The oxygenated ions are probably derived from the mass spectrometric reaction of the hydroperoxy intermediates in the chemiluminescence proposed by McCapra.

Key words: Chemiluminescence, Hydroperoxide, Liquid SIMS, Linked scan at constant B/E, N-Methylacridinium-9-carboxylate esters