Reactive Scattering with Oriented Molecules: Selectivity in the Ba + N2O → BaO* + N2 Reaction

Jalink, H.; Janssen, Maurice H. M.; Geijsberts, M.; Stolte, S.; Parker, David H.; Wang, John Z. W.

doi:10.1007/978-94-009-3047-6_11

Cited by 1 publication

(2 citation statements)

References 23 publications

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“…( e ) Schematic of potential surface features consistent with the above behaviour: as before, the bold line represents the minimum energy path; 1, 2, and 3 are trajectories with progressively higher collision energy; and x is the saddle point. N20(n2 = 1 ) (13,14) and K + CH31 ( 4 6 4 8 ) . Relative internuclear distances RJRo and RIIRo have thereby been deduced from the multilinear yield functions found in those reactions (15).…”

Section: Results and Analysismentioning

confidence: 99%

“…Thus, by restricting the partitioning of Eb only to product translation or to MnC1:+ vibrational excitation, we can ignore E,,,(SnC14), and assume Do(SnC13-Cl) -263 kJ mol-l. Equation [13] then becomes A lower limit to Ei(MnC1'%) is given by hvoo in each case: -266 kJ mol-I for the blue emission (assuming hoo = 450 nm); -240 kJ mol-' for the green bands ( Substitution of Eo = 10, 15, and 22 kJ mol-', as appropriate, into eq. 1141 then shows that Ei(MnZ" 2 162, 131, and 57 kJ mol-I, respectively.…”

Section: Product and Reagent State Excitationsmentioning

confidence: 99%

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Multiple potential surfaces and movable energy barriers in the chemiluminescent reaction Mn + SnCl₄

Herbertson¹,

Newnham²,

Levy³

1994

Can. J. Chem.

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This prrper is dedicated to Professor John C. Polnnyi on the occasion of his 65th birthday DALE L. HERBERTSON, DAVID A. NEWNHAM, and MARTIN R. LEVY. Can. J. Chem. 72, 850 (1994). A laser-ablated pulsed beam of Mn atoms, in various long-lived states, has been employed to determine excitation functions for the reactions Mn + SnCI4 + MnCI* ("blue," "green," "red") + SnC13. The data all show a sharp rise at low energies, followed by an equally rapid fall, but they differ in the initial thresholds and the rate at which u(ET) approaches zero. Analysis in terms of a multiple line-of-centres model (Levy, Res. Chem. Kinet. 1, 163 (1993)) indicates that each excitation function is unique, and is due to reaction of only one Mn reagent state -most probably the first metastable state, n6DJ. This suggests a strong symmetry control in the entrance channel of the reaction, at least; that is, the Mn atom approaches along the C3 axis of SnCI4, so that the symmetry corresponding to the spatial configuration of the odd d electron is retained. In two cases, "blue" and "red," if not all, the luminescing MnC1" state seems to be produced on a surface that does not directly correlate with the reagents. As collision energy increases in each case, the reaction transition state seems to shift forward into the entrance valley, a result attributed to restricted access to the exit valley. DALE L. HERBERTSON, DAVID A. NEWNHAM et MARTIN R. LEVY. Can. J. Chem. 72,850 (1994). On a utilist un faisceau pulst d'atomes de Mn, obtenus par ablation au laser et prCsents dans divers ttats de longue durte, pour dtterminer les fonctions d'excitation de la rCaction Mn + SnC14 + MnCl* (<, I'ttat MnCl* luminescent semble &tre produit sur une surface qui n'est pas en corrtlation directe avec les rtactifs. Lorsque l'tnergie de collision augmente dans chaque cas, I'ttat de transition de la rtaction semble se dtplacer vers I'nvant, dans la vallte d'entrte; ce rtsultat est attribut B un accks limit6 i la vallte de sortie.[Traduit par la rtdaction]

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Section: Results and Analysismentioning

confidence: 99%

Section: Product and Reagent State Excitationsmentioning

confidence: 99%

Multiple potential surfaces and movable energy barriers in the chemiluminescent reaction Mn + SnCl₄

Herbertson¹,

Newnham²,

Levy³

1994

Can. J. Chem.

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Reactive Scattering with Oriented Molecules: Selectivity in the Ba + N2O → BaO* + N2 Reaction

Cited by 1 publication

References 23 publications

Multiple potential surfaces and movable energy barriers in the chemiluminescent reaction Mn + SnCl₄

Multiple potential surfaces and movable energy barriers in the chemiluminescent reaction Mn + SnCl₄

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Reactive Scattering with Oriented Molecules: Selectivity in the Ba + N2O → BaO* + N2 Reaction

Cited by 1 publication

References 23 publications

Multiple potential surfaces and movable energy barriers in the chemiluminescent reaction Mn + SnCl4

Multiple potential surfaces and movable energy barriers in the chemiluminescent reaction Mn + SnCl4

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Multiple potential surfaces and movable energy barriers in the chemiluminescent reaction Mn + SnCl₄

Multiple potential surfaces and movable energy barriers in the chemiluminescent reaction Mn + SnCl₄