Electron collisions with H3+: Ion-pair formation

• The formation of the ion pair H2++H− in electron recombination with H3+ is studied. The diabatic potentials and electronic couplings are extracted from ab initio electron scattering calculations as well as quantum chemistry calculations. In order to describe this reaction we include six coupled electronic states and propagate wave packets in two dimensions using the multiconfiguration time-dependent Hartree method. Also, the cross section for ion-pair formation in electron recombination with D3+ is calculated. The cross section for this isotopomer is found to be about a factor of 3 smaller than the cross section for H3+.

Subject headings

NATURVETENSKAP  -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)

NATURVETENSKAP  -- Kemi -- Teoretisk kemi (hsv//swe)

NATURAL SCIENCES  -- Chemical Sciences -- Theoretical Chemistry (hsv//eng)

Keyword

ab initio calculations

deuterium

hydrogen ions

ion recombination

isotope effects

molecular electronic states

molecule-electron collisions

positive ions

quantum chemistry

Chemical physics

Kemisk fysik

Molecular physics

Molekylfysik

kemisk fysik

Chemical Physics

Theoretical chemistry

Publication and Content Type

ref (subject category)

art (subject category)