  The infrared spectrum of the weakly-bound CO2-Ne complex is studied in the
region of the carbon dioxide nu3 fundamental vibration (~2350 cm-1), using a
tunable OPO laser source to probe a pulsed supersonic slit jet expansion. For
the fundamental CO2 transition (v1, v2l2, v3) = (0001) <-- (0000), both
CO2-20Ne and CO2-22Ne are assigned and analyzed in combination with available
microwave data to obtain the best currently available molecular parameters. In
addition, combination bands involving the intermolecular bending mode are
observed for both isotopologues, leading to the determination of the bending
frequency in the CO2 excited state, which is 17.717 cm-1 for CO2-20Ne and
17.726 cm-1 for CO2-22Ne. For the hot band CO2 transition, (0111) <-- (0110),
detection of the weak CO2-Ne spectrum reveals the symmetry breaking of the CO2
nu2 bending mode induced by the Ne atom, with the out-of-plane component
determined to lie 0.057 cm-1 higher in energy than the in-plane component.
