Ultrafast dynamics of adenine following XUV ionization

Abstract The dynamics of biologically relevant molecules exposed to ionizing radiation contains many facets and spans several orders magnitude in time energy. In the extreme ultraviolet (XUV) spectral range, multi-electronic phenomena bands correlated states with inner-valence holes must be accounted for addition a plethora vibrational modes available dissociation channels. ability track changes charge density bond length during ultrafast reactions is an important endeavor toward more general abilities simulate control photochemical processes, possibly inspired by those that have evolved biologically. By using attosecond XUV pulses extending up 35 eV few-femtosecond near-infrared pulses, we previously time-resolved electronic migration occurring molecule adenine after XUV-induced sudden ionization. Here, additional experimental data, comprehensively report on both this nucleobase energy range little explored date high temporal resolution. time-dependent yields parent fragment ions mass spectra are analyzed extract exponential constants oscillation periods. Together functional theory ab-initio Green’s function methods, identify different processes. Beyond providing further insights into nucleobase, our work demonstrates specific outcomes can influenced sufficiently well-timed ultrashort therefore new route dissociative DNA building block.