Biopolymers and cell. 1996; 12 (3): 97 - 100

Electron-impact excitation and ionization of the adenine

M. I. Sukhovija, E. I. Voshclwiiinec, M. I. Shafranyosh, L. L. Shimon

Electron-impact excitation, ionization and dissociation of gas-phase adenine were studied in the energy range ofO to 300 eV. Investigations were carried out by a crossed electron and molecular beam method with photoelectric registration of radiation. The luminescence spectra of adenine and its dissociative excitation products were obtained within the, region of 200 to 600 nm. Excitation and ionization functions for molecules in'question were measured. The analysis of the functions showed the presence of the intersystem crossing with the formation ofthe triplet metastable states.