State-selected ion–molecule reactions: N+2(v)+H2→N2+H+2 and Ar+(2P
 J) +H2→Ar+H+2

Henri, G.; Lavollée, M.; Dutuit, O.; Ozenne, J.B.; Guyon, P. M.; Gislason, Eric A.

doi:10.1063/1.454475

Cited by 49 publications

(11 citation statements)

References 46 publications

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“…The peaks of other states are either overlapping partially or completely with a H 2 ϩ state. Our conclusion that charge transfer has a cross section that is more than an order of magnitude smaller than the cross section for formation of N 2 H ϩ is in qualitative agreement with the work of Henri et al 4 and that of Hierl et al 5 ͑see Sec. I͒.…”

Section: Nsupporting

confidence: 81%

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State-selected ion-molecule reactions: Charge transfer and atomic rearrangement processes in thermal energy collisions of H2+(X;v)+N2 and of N2+(X,A;v) + H2

Uiterwaal

Eck

Niehaus

1995

The Journal of Chemical Physics

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Using the photo-electron-product-ion-coincidence method ͑PEPICO͒ we have measured state-selective cross sections for the following processes:The measurements were performed at thermal velocities (E c.m. Ϸ40 meV͒. We have found that the charge transfer processes ͑C͒ and ͑D͒ have cross sections that are at least an order of magnitude smaller than the cross sections for the rearrangement processes ͑A͒ and ͑B͒. The cross section for reaction ͑A͒ with N 2 ϩ (A;v) as reactant is found to be (50.2Ϯ2.4)% of the cross section for the same reaction with N 2 ϩ (X;v) as reactant. The cross section for reaction ͑B͒ is found to be independent of the internal energy of the reactant ion. The measured variation of the cross sections as a function of the internal energy of the reacting ion is compared with calculations based on a RRKM type statistical model and an electronic correlation diagram of the ͑N 2 -H 2 ͒ ϩ system. Excellent agreement is found, indicating complete randomization of internal energy within the collision complex. Absolute cross sections are determined for the rearrangement reactions: for reaction ͑A͒ the cross section is 76.1 Å 2 starting with N 2 ϩ (X;vϭ0,1) and 38.05 Å 2 starting with N 2 ϩ (A;vϭ0 -5). For reaction ͑B͒ the cross section is 114 Å 2 for H 2 ϩ (X;vϭ0 -6).

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Section: Nsupporting

confidence: 81%

“…Henri et al 4 used a TPEPICO ͑threshold-photoelectronproduct-ion-coincidence͒ technique using synchrotron radiation to measure cross sections for process ͑2͒ for E c.m. ϭ0.70 and 0.97 eV, for N 2 ϩ (X;vϭ0-4͒ and for N 2 ϩ (A;vϭ0 -5͒.…”

Section: Introductionmentioning

confidence: 99%

State-selected ion-molecule reactions: Charge transfer and atomic rearrangement processes in thermal energy collisions of H2+(X;v)+N2 and of N2+(X,A;v) + H2

Uiterwaal

Eck

Niehaus

1995

The Journal of Chemical Physics

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“…These authors did not observe a variation of the rate constant with the vibrational level of N + 2 . Similar behavior is observed at higher collision energies (Henri et al 1988;Koyano et al 1987). Isotopic effects have been investigated in guided ion beam experiments (Schultz & Armentrout 1992).…”

Section: (±25%)supporting

confidence: 51%

CRITICAL REVIEW OF N, N ⁺ , N ⁺ ₂ , N ⁺⁺ , And N ⁺⁺ ₂ MAIN PRODUCTION PROCESSES AND REACTIONS OF RELEVANCE TO TITAN'S ATMOSPHERE

Dutuit

Carrasco

Thissen

et al. 2013

ApJS

124

114

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“…11 This diagram shows the high density of exiting channels, which may complicate the studies for this system. Experimentally, the following channels have been investigated: 6,10,[12][13][14][15][16] …”

Section: Introductionmentioning

confidence: 99%

Theoretical investigations of the N2H2+ cation and of its reactivity

Palaudoux

Hochlaf²

2004

The Journal of Chemical Physics

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Accurate ab initio calculations have been performed in order to investigate both the stable isomers and the reactivity of the N(2)H(2)(+) cation. In addition to the trans-HNNH(+) isomer already observed in the photoelectron studies, a formaldehyde type (isodiazene cation) and H(2)O(2)-like isomers are found. At the coupled cluster level of theory, the isodiazene cation is calculated to be as stable as trans-HNNH(+). We have also studied the reactivity of N(2)H(2)(+) and its implication on the reactive processes involving N(2)/N(2)(+) and H(2)(+)/H(2), H/H(+) and HN(2)(+)/HN(2), and HN and HN(+) by performing suitable one-dimensional cuts of the six-dimensional potential energy functions of the lowest electronic states of H(2)N(2)(+). We have pointed out the crucial role of this tetratomic intermediate cation and the importance of the short range internuclear distances during these processes. In the case of N(2)/N(2)(+) and H(2)(+)/H(2) reactions, we have shown that the initial orientation of the reactants may influence the N(2)H(2)(+) tetratomic intermediate: One can expect to form the trans isomer preferentially if the internuclear axes of the H(2)/H(2)(+) and the N(2)(+)/N(2) molecules are parallel to each other when these diatoms are colliding and after intramolecular isomerization process. However, if the internuclear axes of the diatomics are perpendicular to each other, the isodiazene cation is formed preferentially. Different branching ratios are expected for each collision scheme. These reactive processes are found to involve vibronic, Renner-Teller and spin-orbit couplings between the electronic states of N(2)H(2)(+). These interactions mix these electronic states, leading to the formation of atomic, diatomic, and triatomic species via the decomposition of the N(2)H(2)(+) intermediate complex.

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State-selected ion–molecule reactions: N+2(v)+H2→N2+H+2 and Ar+(2P J) +H2→Ar+H+2

Cited by 49 publications

References 46 publications

State-selected ion-molecule reactions: Charge transfer and atomic rearrangement processes in thermal energy collisions of H2+(X;v)+N2 and of N2+(X,A;v) + H2

State-selected ion-molecule reactions: Charge transfer and atomic rearrangement processes in thermal energy collisions of H2+(X;v)+N2 and of N2+(X,A;v) + H2

CRITICAL REVIEW OF N, N ⁺ , N ⁺ ₂ , N ⁺⁺ , And N ⁺⁺ ₂ MAIN PRODUCTION PROCESSES AND REACTIONS OF RELEVANCE TO TITAN'S ATMOSPHERE

Theoretical investigations of the N2H2+ cation and of its reactivity

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State-selected ion–molecule reactions: N+2(v)+H2→N2+H+2 and Ar+(2P J) +H2→Ar+H+2

Cited by 49 publications

References 46 publications

State-selected ion-molecule reactions: Charge transfer and atomic rearrangement processes in thermal energy collisions of H2+(X;v)+N2 and of N2+(X,A;v) + H2

State-selected ion-molecule reactions: Charge transfer and atomic rearrangement processes in thermal energy collisions of H2+(X;v)+N2 and of N2+(X,A;v) + H2

CRITICAL REVIEW OF N, N + , N + 2 , N ++ , And N ++ 2 MAIN PRODUCTION PROCESSES AND REACTIONS OF RELEVANCE TO TITAN'S ATMOSPHERE

Theoretical investigations of the N2H2+ cation and of its reactivity

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CRITICAL REVIEW OF N, N ⁺ , N ⁺ ₂ , N ⁺⁺ , And N ⁺⁺ ₂ MAIN PRODUCTION PROCESSES AND REACTIONS OF RELEVANCE TO TITAN'S ATMOSPHERE