Multipole-moment effects in ion–molecule reactions at low temperatures: part I – ion-dipole enhancement of the rate coefficients of the He<sup>+</sup> + NH<sub>3</sub> and He<sup>+</sup> + ND<sub>3</sub> reactions at collisional energies <i>E</i><sub>coll</sub>/<i>k</i><sub>B</sub> near 0 K
Valentina Zhelyazkova, Fernanda B. V. Martins, Josef A. Agner, Hansjürg Schmutz, F. Merkt
Abstract
The energy dependence of the rates of the reactions between He + and ammonia (NY 3 , Y = {H,D}), forming NY 2 + , Y and He as well as NY + , Y 2 and He has been measured at low collision energies near 0 K.
Topics & Concepts
Atomic physicsIonChemistryStark effectExcited stateElectric fieldDipoleRydberg stateRydberg formulaPhysicsIonizationOrganic chemistryQuantum mechanicsSpectroscopy and Laser ApplicationsAtomic and Molecular PhysicsAtmospheric Ozone and Climate