MASS SPECTROMETRIC STUDIES ON POLYPHENYLS PARTⅡ THE MASS SPECTRA OF THE TRIPHENYLBENZENES AND TRIPHENYLENE

摘要

The 70 and 50 eV Mass Spectra of the three triphenylbenzenes and tri-phenylene, obtained with an Atlas CH4 Mass Spectrometer, are reported and discussed. As observed for some polyphenyls previously studied, the ortho bonded molecules are characterized by a lower stability under electron impact leading to a greater fragmentation by rupture of C-H and C-C bonds. Tri-phenylene behaves like other condensed aromatic hydrocarbons showing a higher stability and a specific fragmentation. From their mass spectra, pre¬visions are made on gas formation in the radiolysis of these molecules.