Electron energy Loss spectra under scattering of electrons on 4-amino-
N-(n-butylphenylene)-1,8-naphtha- limide and 4-methylamino-N-(o-tolyl)
-1,8-naphthalimide in a vapour phase is studied. The primary electron
energy was varied from 6 to 60 eV and the scattering angle was 90 degr
ees. It is found that the differential cross section of excitation of
complex organic molecules into some triplet states can reach the same
value as singlet ones.