Electron affinities of perfluorobenzene and perfluorophenyl compounds

Chowdhury, Swapan K.; Grimsrud, E. P.; Heinis, Thomas; Kebarle, P.

doi:10.1021/ja00273a014

Cited by 85 publications

(33 citation statements)

References 3 publications

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“…Our G2(MP2) ab initio calculations predict the following numbers for the adiabatic electron affinities: EA (1,2-DNB) = 1.7 eV, EA (1,3-DNB) = 1.3 eV, and EA (1,4-DNB) = 1.5 eV. The available experimental numbers, obtained from gas phase electron transfer equilibria [3,28], are a few hundred millielectronvolt below the calculated values.…”

Section: Electronic Structure Of the Ground State Anionsmentioning

confidence: 82%

Probing di-nitrobenzene by low energy electrons

Sulzer

Mauracher

Denifl

et al. 2007

International Journal of Mass Spectrometry

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Section: Electronic Structure Of the Ground State Anionsmentioning

confidence: 82%

Probing di-nitrobenzene by low energy electrons

Sulzer

Mauracher

Denifl

et al. 2007

International Journal of Mass Spectrometry

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“…In FL, the flourine atom induces strong electron withdrawing (by inductive effect) and a weak electron pair donating (π bonding) effect, which is referred to as the perfluoro effect. 12 The presence of such effects will significantly affect the mechanism of photoinduced electrontransfer reactions compared to other halogenated quinones. We previously reported 13,14 detailed TR3 studies on triplet fluoranil ( 3 FL), where we investigated the influence of perfluorination on its structure and reactivity.…”

Section: Introductionmentioning

confidence: 99%

Influence of Solvent on Photoinduced Electron-Transfer Reaction: Time-Resolved Resonance Raman Study

Mohapatra

Umapathy

2009

J. Phys. Chem. A

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Time-resolved resonance Raman spectroscopy (TR3) has been used to study the effect of solvent polarity on the mechanism and nature of intermediates formed in photoinduced electron-transfer reaction between triplet flouranil ((3)FL) and tetramethylbenzene (TMB). Comparison of the TR3 spectra in polar, nonpolar, and medium polar media suggests that formation of radical anion due to electron-transfer reaction between (3)FL and TMB is favored in more polar solvents, whereas ketyl radical formation is more favored in less polar media. Compared to ketyl radical, the extent of radical anion formation is negligible in nonpolar solvents. Therefore, it is inferred that in nonpolar media ketyl radical is mainly generated by hydrogen-transfer reaction in the encounter complex between (3)FL and TMB. In solvents of medium polarity, the ion-pair decay leads to the formation of both ketyl radical and ketyl radical formed from the encounter between triplet state and the donor. Thus, competition between the formation of ketyl radical and ion pair is influenced by the solvent polarity. The nature of the ion pair in different solvent polarity has been investigated from the changes observed in the vibrational frequency of (fluoranil) FL part of the complex.

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“…Shortly afterwards, in 1986, Chowdhury et al used high-pressure mass spectrometry to measure EACCgFe) and found 0.52±0.10eV [9][10][11] and noted that thermal detachment would take place at modest temperatures. In 1992, Knighton et al [12] confirmed the electron detachment explanation of the previous experiments and measured rate constants for the detachment process over the temperature range 307-349 K. Much of the Knighton et al work regarded the role of unavoidable oxygen impurities in high-pressure experiments; they concluded that high-pressure experiments carried out without mass spectrometric analysis of the ions, such as those of Spyrou and Christophorou [5] and Chen et al [6], were unlikely to be correctly interpreted.…”

Section: Introductionmentioning

confidence: 99%