Negative ions in the mass spectrum of nitromethane

Domenico, Alessandro Di; Franklin, J. L.

doi:10.1016/0020-7381(72)80043-3

Cited by 20 publications

(15 citation statements)

References 23 publications

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“…h e 0.6 eV, has been um orm y 0 serve ,owev r, Tsuda, Yokohata, and Kawai 12 have reported additional smaller NO; peaks at 4.6 and 8.5 eV which were not observed in the present work or in the study of DiDomenico and Franklin. 13 The prinCipal 0-resonance maximum appears in Fig. 2 at 5.4 eV.…”

Section: Impact Of Electrons Of Greater Than Thermal Energymentioning

confidence: 93%

Production of negative ions from CH3X molecules (CH3NO2, CH3CN, CH3I, CH3Br) by electron impact and by collisions with atoms in excited Rydberg states

Stockdale

Davis

Compton

et al. 1974

The Journal of Chemical Physics

155

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Articles you may be interested inDipolebound excited states of the I−CH3CN and I−(CH3CN)2 ion-molecule complexes: Evidence for asymmetric solvation Laser induced fluorescence measurements of the X 2Σ+ state of CN produced by electron impact on CH3CN J. Chem. Phys. 95, 754 (1991);Thermal electron attachment to nitromethane, methylcyanide, methyliodide, and methylbromide is compared with capture of electrons by these molecules from highly excited Rydberg states of atoms. Data on thermal electron attachment to CH 3 NO, are consistent with a three-body attachment process, with the nature of the third body being important. The thermal energy electron attachment rate constant for CH 3 CN is :s; 1.24X 10-" cm 3 sec-I. Some results on dissociative electron attachment and io~ pairing processes in CH 3 N0 2 , CH 3 CN, CH 3 I, and CH3Br are also presented.

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Section: Impact Of Electrons Of Greater Than Thermal Energymentioning

confidence: 93%

Production of negative ions from CH3X molecules (CH3NO2, CH3CN, CH3I, CH3Br) by electron impact and by collisions with atoms in excited Rydberg states

Stockdale

Davis

Compton

et al. 1974

The Journal of Chemical Physics

155

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show abstract

“…The fulminate anion has been detected in the mass spec-trum of nitroalkanes, [8][9][10][11] but contrary to the NCO − form, there is so far no experimental structural information available for the CNO − isomer. Several theoretical studies already investigated this anionic system.…”

Section: Introductionmentioning

confidence: 99%

New study of the stability and of the spectroscopy of the molecular anions NCO− and CNO−

Léonard

Gritli

Chambaud

2010

The Journal of Chemical Physics

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Using highly correlated wave functions, the ground and the low lying excited states of the molecular NCO(-) and CNO(-) anions have been reinvestigated. The stability of the electronic ground state of the two isomers with respect to dissociation and to electron detachment has been checked along the isomerization pathway. The regions of stability of the excited electronic states have been analyzed and identified and it is shown that only the ground state is stable and the corresponding potential energy surface presents three equilibrium positions. The rovibronic spectroscopy of the X (1)Σ(+) state of both NCO(-) and CNO(-) isomers has been determined by a variational approach leading to remarkable agreement with experimental data.

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“…Explosion residues detection techniques are important to investigation the cause of explosions and are based on optical detection methods, especially in the mid-infrared spectral region [2][3], or on chemiluminescence [4][5]. The interaction of electrons and photons with nitromethane in the gas phase is relatively complex and has been investigated in the past [6][7][8][9][10][11][12][13]. The production of negative ions using dissociative electron attachment to nitromethane has been studied using the mass spectroscopy for analysis of the fragment negative ions [6,7].…”

Section: Introductionmentioning

confidence: 99%

“…The interaction of electrons and photons with nitromethane in the gas phase is relatively complex and has been investigated in the past [6][7][8][9][10][11][12][13]. The production of negative ions using dissociative electron attachment to nitromethane has been studied using the mass spectroscopy for analysis of the fragment negative ions [6,7]. Elastic scattering of the nitromethane has revealed the electronic structure of the molecule [9][10][11] and dissociative electron attachment (DEA) provided insight into resonant processes of nitromethane and low energy (0 -16 eV) impact electrons [7].…”

Section: Introductionmentioning

confidence: 99%

Dissociative Excitation of Nitromethane Induced by Electron Impact in the Ultraviolet – Visible Spectrum

et al. 2021

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The excitation of nitromethane (CH3NO2), which is an important propellant and prototypic molecule for large class of explosives, has been investigated by electron impact and subsequent emission of photons in the UV-VIS spectral region between 300 nm and 670 nm. Emission spectrum of nitromethane was recorded at an electron energy of 50 eV. New dissociative excitation channels were discovered through the appearance of different CH, CN, NH, OH and NO bands, and the Balmer series of atomic hydrogen. In addition, relative emission cross sections were recorded for the transitions of selected fragments. The emission spectrum was captured at significantly higher resolution in comparison to previous studies.

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Negative ions in the mass spectrum of nitromethane

Cited by 20 publications

References 23 publications

Production of negative ions from CH3X molecules (CH3NO2, CH3CN, CH3I, CH3Br) by electron impact and by collisions with atoms in excited Rydberg states

Production of negative ions from CH3X molecules (CH3NO2, CH3CN, CH3I, CH3Br) by electron impact and by collisions with atoms in excited Rydberg states

New study of the stability and of the spectroscopy of the molecular anions NCO− and CNO−

Dissociative Excitation of Nitromethane Induced by Electron Impact in the Ultraviolet – Visible Spectrum

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