The electron affinities of NO and O 2

Chen, Edward S.; Wentworth, W. E.; Chen, Edward C. M.

doi:10.1016/s0022-2860(01)00813-4

Cited by 37 publications

(32 citation statements)

References 17 publications

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“…Recently, Chen and Chen [17] have interpreted electron capture detector data as yielding three electronic states of CgFe", with electron binding energies of 0.80, 0.70, and 0.55 eV. However, similar work [18,19] on NO and O2 from Chen's laboratory flies in the face of well-established spectroscopic results and is clearly wrong. This point has been forcefully made by Ervin et al [20], who concluded that "all electron capture detector measurements of electron affinities should be considered subject to large and unknown errors.…”

Section: Introductionmentioning

confidence: 99%

Electron attachment and detachment: C6F6

Miller

Doren

Viggiano

2004

International Journal of Mass Spectrometry

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Section: Introductionmentioning

confidence: 99%

Electron attachment and detachment: C6F6

Miller

Doren

Viggiano

2004

International Journal of Mass Spectrometry

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“…Argon does not form a stable anion, and it is well established that electrons emitted into argon gas remain as free electrons (albeit with some elastic collisions) [18]. In contrast, both O 2 and SF 6 form stable anions: O 2 has an electron affinity of 0.9 V [19], while SF 6 has an electron affinity of 1.03 V [20]. Thus, electrons emitted into argon remain as free electrons, while electrons emitted into air rapidly form O 2 À , and electrons emitted into SF 6 form SF 6 À .…”

Section: Electron Emission Into Gasesmentioning

confidence: 99%

Atmospheric‐pressure photoelectron emission from H‐terminated and amino‐terminated diamond

Hamers

Bandy

2016

Physica Status Solidi (a)

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Phone: þ01 608 262 6371, Fax: þ01 608 262 0453We report investigations of the ultraviolet-induced emission of electrons from diamond into air, argon, and SF 6 gases at atmospheric pressure. Although diamond has long been known to be a facile emitter of electrons in vacuum, the present results show that H-terminated and amino-terminated diamond can also act as emitters of low-energy electrons into gases at atmospheric pressure. Present results show that emission currents follow the trend Ar > air > SF 6 . We attribute these differences to the fact that Ar does not form stable anions and the emitted electrons remain as free electrons with very low effective mass, while electrons in air form O 2 À and electrons in SF 6 form SF 6 À anions. The observed trends are consistent with trends reported in ion mobility measurements.Photoemission of electrons from diamond into argon gas at atmospheric pressure.

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“…The procedures for the calculation of the HIMPEC in Figure 1 have been previously described in detail. The curves for the diatomic molecules are presented for comparison with HIMPEC for guanine from this work [5,6,11,12,14,16].…”

Section: Experiments and Calculationsmentioning

confidence: 99%

“…We reported AE a (C,U,T) from the onsets identified using reduction potentials. These are shown in Figure 2 [5,[7][8][9][10][11][12][13][14][15][16][17][18][19]. Water molecules (10-15) will complete the inner hydration shell for C, U, and T anions based on the experimental sequential hydration energy, 0.20(5) eVand the bulk hydration energy of 2.34 eV.…”

Section: Molecular Simulation 721mentioning

confidence: 99%

The role of spin in biological processes: O₂, NO, nucleobases, nucleosides, nucleotides and Watson–Crick base pairs

Chen

2009

Molecular Simulation

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The experimental electron affinities of adenine, guanine, cytosine, thymine and uracil have been determined from reduction potentials and negative ion photoelectron spectra. Updated values for purine, pyrimidine and other nitrogen heterocyclics, which have not been measured in the gas phase, are presented. The electron affinity of Watson -Crick guanine -cytosine is estimated empirically. The experimental values are consistent with quantum mechanical semi-empirical multiconfiguration configuration interaction calculations. The bulk hydration energies of the nucleobase anions, 2.34 eV, determined from the experimental data and sequential anion hydration energy difference of about 0.20(5) eV suggest that 10 -15 water molecules complete the hydration shell. The electron affinities for the formation of doublet and quartet anions of the nucleobases, nucleosides, nucleotides and Watson -Crick base pairs are calculated. We postulate that low-lying quartet anion states and their spin distribution can and will participate in electron conduction, radiation damage, oxidation damage and repair, strand breakage and protein synthesis.

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The electron affinities of NO and O 2

Cited by 37 publications

References 17 publications

Electron attachment and detachment: C6F6

Electron attachment and detachment: C6F6

Atmospheric‐pressure photoelectron emission from H‐terminated and amino‐terminated diamond

The role of spin in biological processes: O₂, NO, nucleobases, nucleosides, nucleotides and Watson–Crick base pairs

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The electron affinities of NO and O 2

Cited by 37 publications

References 17 publications

Electron attachment and detachment: C6F6

Electron attachment and detachment: C6F6

Atmospheric‐pressure photoelectron emission from H‐terminated and amino‐terminated diamond

The role of spin in biological processes: O2, NO, nucleobases, nucleosides, nucleotides and Watson–Crick base pairs

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Resources

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The role of spin in biological processes: O₂, NO, nucleobases, nucleosides, nucleotides and Watson–Crick base pairs