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Gas-phase preparation of the dibenzo[e,l]pyrene (C24H14) butterfly molecule via a phenyl radical-mediated ring annulation.
Gas-phase preparation of the dibenzo[e,l]pyrene (C24H14) butterfly molecule via a phenyl radical-mediated ring annulation.
- Source :
- Chemical Communications; 2/7/2024, Vol. 60 Issue 11, p1404-1407, 4p
- Publication Year :
- 2024
-
Abstract
- A high temperature phenyl-mediated addition–cyclization–dehydrogenation mechanism to form peri-fused polycyclic aromatic hydrocarbon (PAH) derivatives—illustrated through the formation of dibenzo[e,l]pyrene (C<subscript>24</subscript>H<subscript>14</subscript>)—is explored through a gas-phase reaction of the phenyl radical (C<subscript>6</subscript>H<subscript>5</subscript>˙) with triphenylene (C<subscript>18</subscript>H<subscript>12</subscript>) utilizing photoelectron photoion coincidence spectroscopy (PEPICO) combined with electronic structure calculations. Low-lying vibrational modes of dibenzo[e,l]pyrene exhibit out-of-plane bending and are easily populated in high temperature environments such as combustion flames and circumstellar envelopes of carbon stars, thus stressing dibenzo[e,l]pyrene as a strong target for far-IR astronomical surveys. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13597345
- Volume :
- 60
- Issue :
- 11
- Database :
- Complementary Index
- Journal :
- Chemical Communications
- Publication Type :
- Academic Journal
- Accession number :
- 175189837
- Full Text :
- https://doi.org/10.1039/d3cc05371g