Resonant two-photon ionization spectroscopy of LiCu
نویسندگان
چکیده
Jet-cooled LiCu has been investigated using resonant two-photon ionization spectroscopy. A long vibrational progression was observed and identified as the @20.5# S←X S band system. Ten bands of the system were rotationally resolved for LiCu, giving bond lengths of r0 52.2618(3) Å for the X S state and re852.74(4) Å for the @20.5# S state. The fitted spectroscopic parameters of the @20.5# S state were used to obtain a RKR estimate of the @20.5# S potential energy curve. The unusual shape of this curve is thought to derive from avoided crossings between the LiCu ion pair state and covalent states, with the LiCu ion pair state ultimately correlating to the ground electronic state of the molecule. © 1997 American Institute of Physics. @S0021-9606~97!01427-X#
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تاریخ انتشار 1997