TY - JOUR
T1 - Infrared absorption spectroscopy of d-3: an investigation into the formation mechanisms of triatomic hydrogenic species - discussion
AU - Mitchell, J.B.A.
AU - Amano, T.
AU - Duxbury, G.
PY - 2000/9/15
Y1 - 2000/9/15
N2 - Infrared absorption spectra of D3 are observed with a difference frequency laser system in the frequency ranges around 3600cm-1 (3s2A'1 - 3p 2E') and 3900cm-1 (3d - 3p 2E'). The observed line shapes exhibit a non-M axwellian velocity distribution, and the translational energy is derived to be ca.0.4eV. From this finding, it is concluded that D3 is forme d through the dissociative recombination reaction D5+ wit h electrons. The rotational dependence of the line shapes of the 3600cm-1 band is brought about by a competition between the predissociation in the 3s 2A'1 state and the radiative decay in the 3p2E' state. The shorter lifetimes of the 3d complex make the lin e shape of the 3900cm-1 band simpler, a superposition of two absorpt ion profiles with different widths. The greater widths of the absorption lines of the 3900cm-1 band are attributed to unresolved spin-splittings.
AB - Infrared absorption spectra of D3 are observed with a difference frequency laser system in the frequency ranges around 3600cm-1 (3s2A'1 - 3p 2E') and 3900cm-1 (3d - 3p 2E'). The observed line shapes exhibit a non-M axwellian velocity distribution, and the translational energy is derived to be ca.0.4eV. From this finding, it is concluded that D3 is forme d through the dissociative recombination reaction D5+ wit h electrons. The rotational dependence of the line shapes of the 3600cm-1 band is brought about by a competition between the predissociation in the 3s 2A'1 state and the radiative decay in the 3p2E' state. The shorter lifetimes of the 3d complex make the lin e shape of the 3900cm-1 band simpler, a superposition of two absorpt ion profiles with different widths. The greater widths of the absorption lines of the 3900cm-1 band are attributed to unresolved spin-splittings.
KW - infrared absorption spectroscopy
KW - spectroscopy
KW - triatomic hydrogenic species
KW - molecular processes
KW - h3+
UR - http://adsabs.harvard.edu/abs/2000RSPTA.358.2457A
UR - http://royalsociety.org/
UR - http://rsta.royalsocietypublishing.org/
UR - http://dx.doi.org/10.1098/rsta.2000.0660
M3 - Article
VL - 358
SP - 2469
EP - 2470
JO - Proceedings A: Mathematical, Physical and Engineering Sciences
JF - Proceedings A: Mathematical, Physical and Engineering Sciences
SN - 1364-5021
IS - 1774
ER -