Long-lived anionic states of H_{2} , HD, D_{2} , and T_{2}

Article

Long-lived anionic states of H_{2} , HD, D_{2} , and T_{2}

Čížek, M.; Horáček, J.; Domcke, W.

Phys. Rev. A 75(0), 012507-+ (2007)

Abstract

A detailed investigation of the long-lived states of the hydrogen molecule anion has been performed within the ab initio-based nonlocal resonance model. The resonances in the X 2Sigma<sub>u</sub><sup>+</sup> electronic state of H2- are stabilized against autodetachment by molecular rotation and can be interpreted as orbiting states of H+H- with high angular momenta (J=22-27). The lifetimes and energies of all long-lived states have been calculated for the hydrogen molecular anion and its isotopic analogs. Recent experimental values of Heber et al. [Phys. Rev. A 73, 060501(R) (2006)] for lifetimes of H2-, HD-, and D2- can be explained within the model. For T2-, we predict a large number of states with lifetimes up to ~0.1 s.

Institute authors

Supported by

GAAV IAA100400501 — Dynamika excitovaných molekulárních systémů
GACR 202/03/D112 — Dynamics of molecular collisions with inclusion of electron continuum
MSM0021620835 — Fyzika molekulárních, makromolekulárních a biologických systémů

BibTeX

@article{UTF104,
  author        = {Čížek, M. and Horáček, J. and Domcke, W.},
  title         = {{Long-lived anionic states of H\_\{2\} , HD, D\_\{2\} , and T\_\{2\}}},
  journal       = {Phys. Rev. A},
  volume        = {75},
  number        = {0},
  pages         = {012507-+},
  year          = {2007},
  doi           = {10.1103/PhysRevA.75.012507},
  url           = {http://link.aps.org/abstract/PRA/v75/e012507},
}