Energy dependence of the isomerization of HCN+ to HNC+ via ion molecule reactions
| Autor: | Ch. Scheiring, Werner Lindinger, Armin Hansel, M. Glantschnig, E. E. Ferguson |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Exothermic reaction
chemistry.chemical_classification Proton Chemistry General Physics and Astronomy Photochemistry Kinetic energy Ion Atom Physics::Atomic and Molecular Clusters Molecule Compounds of carbon Astrophysics::Earth and Planetary Astrophysics Physics::Chemical Physics Physical and Theoretical Chemistry Nuclear Experiment Isomerization Astrophysics::Galaxy Astrophysics |
| Zdroj: | The Journal of Chemical Physics. 109:1743-1747 |
| ISSN: | 1089-7690 0021-9606 |
| DOI: | 10.1063/1.476748 |
| Popis: | The mechanism for isomerization of HCN+ ions to the more stable HNC+ in collision with CO2 at thermal energy has been confirmed to be a double proton transfer in the collision complex. First a proton is transferred from C in HCN+, then, following CN rotation in the complex, the proton is transferred to the N atom, both proton transfers being exothermic. The mechanism has been established by measuring the reaction of HCN+ with CO2 as a function of energy from thermal up to 0.7 eV relative kinetic energy in a selected ion flow drift tube. The isomers are distinguished by the use of monitors that react differently with the two isomers. A similar HCN+ to HNC+ isomerization occurs in thermal collisions with CO. |
| Databáze: | OpenAIRE |
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