2023
DOI: 10.1002/chem.202300909
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Isolation, Structural and Physical Characterization as well as Reactivity of Persistent Acenium Radical Cation Salts

Abstract: The unsubstituted acenium radical cations (ARCs) are extremely sensitive and were hitherto only studied in situ, i. e. in the gas phase, as dilute solutions in strong acids or by matrix isolation spectroscopy at about 10 K. In this study, room temperature stable ARC salts with the weakly coordinating anion [F{Al(OR F ) 3 } 2 ] À (OR F =À OC(CF 3 ) 3 ) supported by the weakly coordinating solvent 1,2,3,4-tetrafluorobenzene (TFB) were prepared and structurally, electrochemically and spectroscopically characteriz… Show more

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Cited by 5 publications
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“…Figure c depicts the changes observed in the UV–vis absorption spectra of Zr-MBA-TET-Re-MOF upon light irradiation. The illumination over the dispersed Zr-MBA-TET-Re-MOF resulted in the gradual appearance of a new peak around 946 nm, which could be attributed to the TET radical cation generated and enhanced its intensity with time. , In addition, other vibronic features can also be observed near 921 and 904 nm. The simultaneous reduction in the intensity of absorbance associated with the TET molecule (∼495 nm) is also discerned with time.…”
Section: Resultsmentioning
confidence: 98%
“…Figure c depicts the changes observed in the UV–vis absorption spectra of Zr-MBA-TET-Re-MOF upon light irradiation. The illumination over the dispersed Zr-MBA-TET-Re-MOF resulted in the gradual appearance of a new peak around 946 nm, which could be attributed to the TET radical cation generated and enhanced its intensity with time. , In addition, other vibronic features can also be observed near 921 and 904 nm. The simultaneous reduction in the intensity of absorbance associated with the TET molecule (∼495 nm) is also discerned with time.…”
Section: Resultsmentioning
confidence: 98%