812-53-3Relevant academic research and scientific papers
Models for polysilane high polymers. 2. Photophysics of linear permethylhexasilane: A low-lying franck-condon forbidden excited singlet state
Sun, Ya-Ping,Michl, Josef
, p. 8186 - 8191 (2007/10/02)
The UV absorption properties of Si6Me14 are those expected from an extrapolation from longer chains, but its fluorescence is not. The observations are best accommodated by postulating that the emitting state of Si6Me14is distinct from the σσ* state that dominates its absorption, in contrast to the situation in Si10Me22 and longer oligosilanes. Tentative assignments are considered for the emitting state. The fluorescence quantum yield of Si6Me14 is strongly temperature dependent, suggesting the existence of a thermally activated radiationless decay channel (Ea = 2.1 kcal/mol, A = 2 × 1012 s-1).
