Gaining control of the photophysical properties of polycyclic aromatic hydrocarbons
Using Peri-xanthenoxanthene as a model for Polycyclic aromatic hydrocarbons authors showed the possibility to tailor its UV-vis absorption and emission energies through specific substitutional patterns using N-atoms as dopants.Cataldo et al., Chemical Science, Vol. 13 - 21, pp. 6335-6347 (2022)
| Polycyclic aromatic hydrocarbons (PAHs) are attracting great interest in the recent years for preparing organic semiconductors that, absorbing in the UV-vis spectral range of solar irradiation, generate excited states of interest for light-harvesting applications and photocatalysis. Herein, we raise the question of whether it is possible to rationally customise optical bandgap properties of a PAH by a specific heteroatom doping pattern and if this can be conceived a priori. A simple conceptual approach has been developed to allow organic chemists to devise pertinent heteroatom-doping patterns to rationally tune the absorption UV-vis envelope of a given PAH. Peri-xanthenoxanthene has been used as a PAH model, showing that one can predictably tailor |
its UV-vis absorption and emission energies through specific substitutional patterns using N-atoms as dopants. Customising excitation properties of polycyclic aromatic hydrocarbons by rational positional heteroatom doping: the peri-xanthenoxanthene (PXX) case
Valentini C., Gowland D., Bezzu C. G., Romito D., Demitri N., Bonini N., Bonifazi D. |
Last Updated on Thursday, 18 May 2023 13:33
