To bond or not to bond – What if the temperature is the question? Article Swipe
YOU?
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· 2025
· Open Access
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· DOI: https://doi.org/10.1016/j.cplett.2025.142052
· OA: W4408747467
Bond formation in 1,8-dimethylenenaphthalene neutrals and cations (C<sub>12</sub>H<sub>10</sub><sup>(+•)</sup>, 154 amu) was probed with mass spectrometry, pyrolysis/photoelectron photoion coincidence spectroscopy (py-PEPICO) and theory. The mass-analyzed ion kinetic energy (MIKE) spectra and neutralization–reionization (NR) mass spectra obtained for m/z 154 from directly ionized acenaphthene (1) and dissociatively ionized 1,8-bis(bromomethyl) naphthalene (C<sub>12</sub>H<sub>10</sub>Br<sub>2</sub>, 1,8-BM) were distinguishable. Combined with theory, the results were interpreted as the two sources forming 1<sup>+•</sup> ions with different average internal energy contents. Pyrolytic debromination of 1,8-BM was found to produce both acenaphthene 1 and acenaphthylene.
