The observation of fluorescence from excited states of NF2 and NF following the photodissociation of NF3 in the 11–30 eV range

Seccombe, D. P.; Tuckett, Richard P.; Jochims, H.‐W.; Baumgärtel, H.

doi:10.1016/s0009-2614(01)00343-8

Cited by 8 publications

(10 citation statements)

References 33 publications

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“…Born corrections to the electron-impact excitation cross sections were used to account for long range dipole effects 42,43 . Hamilton et al 25 estimated the products of the dissociation process by analogy with the observed photodissociation cross sections of Seccombe et al 44 which suggested that the following process can occur:…”

Section: Vibrational Excitation Cross Sectionsmentioning

confidence: 99%

Cross Sections for Electron Collisions with NF3

Song¹,

Yoon²,

Cho

et al. 2017

Journal of Physical and Chemical Reference Data

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Cross section data are compiled from the literature for electron collisions with nitrogen trifluoride (NF 3 ) molecules. Cross sections are collected and reviewed for total scattering, elastic scattering, momentum transfer, excitations of rotational and vibrational states, dissociation, ionization, and dissociative attachment. For each of these processes, the recommended values of the cross sections are presented. The literature has been surveyed up to the end of 2016.

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Section: Vibrational Excitation Cross Sectionsmentioning

confidence: 99%

Cross Sections for Electron Collisions with NF3

Song¹,

Yoon²,

Cho

et al. 2017

Journal of Physical and Chemical Reference Data

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“…The molecular structure of N 2 F 4 has been reported from microwave rotational spectroscopy studies. , The rotational spectrum of the NF 2 free radical in the millimeter-wave region and its microwave and absorption spectra have been reported. The photodissociation of NF 3 has been studied by vacuum-ultraviolet fluorescence spectroscopy . The crystal structures of several N 2 F + and NF 4 + salts have been reported. ,, The structure of the free gaseous ion N 2 F + has also been determined using millimeter-wave spectroscopy .…”

Section: Introductionmentioning

confidence: 99%

F⁺ and F⁻ Affinities of Simple N_xF_y and O_xF_y Compounds

et al. 2011

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Atomization energies at 0 K and heats of formation at 0 and 298 K are predicted for the neutral and ionic N(x)F(y) and O(x)F(y) systems using coupled cluster theory with single and double excitations and including a perturbative triples correction (CCSD(T)) method with correlation consistent basis sets extrapolated to the complete basis set (CBS) limit. To achieve near chemical accuracy (±1 kcal/mol), three corrections to the electronic energy were added to the frozen core CCSD(T)/CBS binding energies: corrections for core-valence, scalar relativistic, and first order atomic spin-orbit effects. Vibrational zero point energies were computed at the CCSD(T) level of theory where possible. The calculated heats of formation are in good agreement with the available experimental values, except for FOOF because of the neglect of higher order correlation corrections. The F(+) affinity in the N(x)F(y) series increases from N(2) to N(2)F(4) by 63 kcal/mol, while that in the O(2)F(y) series decreases by 18 kcal/mol from O(2) to O(2)F(2). Neither N(2) nor N(2)F(4) is predicted to bind F(-), and N(2)F(2) is a very weak Lewis acid with an F(-) affinity of about 10 kcal/mol for either the cis or trans isomer. The low F(-) affinities of the nitrogen fluorides explain why, in spite of the fact that many stable nitrogen fluoride cations are known, no nitrogen fluoride anions have been isolated so far. For example, the F(-) affinity of NF is predicted to be only 12.5 kcal/mol which explains the numerous experimental failures to prepare NF(2)(-) salts from the well-known strong acid HNF(2). The F(-) affinity of O(2) is predicted to have a small positive value and increases for O(2)F(2) by 23 kcal/mol, indicating that the O(2)F(3)(-) anion might be marginally stable at subambient temperatures. The calculated adiabatic ionization potentials and electron affinities are in good agreement with experiment considering that many of the experimental values are for vertical processes.

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“…The observed excimer bands apparently belong to the desorbed excited fragments illustrating the importance of the excited-state stimulated desorption processes in cryogenic solids. Relatively weak spectral features at 3.65 eV and 3.15 eV do not correspond to the known NF 3 fluorescence products [26]. They indicate that a part of the expulsed excited products is hot and possess significant vibrational excitation: corespondingly v' = 2-3 (B-state) and v' = 6 ± 1 (C-state).…”

Section: Ionic Chromophores Xe P + (P £ 4) In Multishell Rare-gas Clumentioning

confidence: 89%

Ionic chromophores Xep+ (p⩽4) in multishell rare-gas clusters Xem(NF3)kNe7500 (m,k⩽100) studied with fluorescence spectroscopy

Kanaev¹,

Museur

Laarmann

et al. 2006

Low Temperature Physics

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We have studied fluorescence spectra of small Xe m and Xe m (NF 3 ) k clusters (m, k £ 10 2 ) embedded in large host Ne 7500 clusters, excited with SR excitation in the VUV spectral region above the Xe + ( 2 P 1/2 ) atomic limit. The IR emission bands due to ionic chromophores Xe p + (p = 2, 3, 4) as well as UV (B-X) and visible (C-A) bands due to desorbed Xe + F -excimer molecules have been observed. The triatomic Xe 2 F excimer emission has only been observed under low-energy excitation close to the lowest xenon exciton absorption band. A competition between ionic and charge-transfer reaction channels is followed as a function of the cluster sizes m and k.

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The observation of fluorescence from excited states of NF2 and NF following the photodissociation of NF3 in the 11–30 eV range

Cited by 8 publications

References 33 publications

Cross Sections for Electron Collisions with NF3

Cross Sections for Electron Collisions with NF3

F⁺ and F⁻ Affinities of Simple N_xF_y and O_xF_y Compounds

Ionic chromophores Xep+ (p⩽4) in multishell rare-gas clusters Xem(NF3)kNe7500 (m,k⩽100) studied with fluorescence spectroscopy

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The observation of fluorescence from excited states of NF2 and NF following the photodissociation of NF3 in the 11–30 eV range

Cited by 8 publications

References 33 publications

Cross Sections for Electron Collisions with NF3

Cross Sections for Electron Collisions with NF3

F+ and F− Affinities of Simple NxFy and OxFy Compounds

Ionic chromophores Xep+ (p⩽4) in multishell rare-gas clusters Xem(NF3)kNe7500 (m,k⩽100) studied with fluorescence spectroscopy

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F⁺ and F⁻ Affinities of Simple N_xF_y and O_xF_y Compounds