New infrared spectra of CO2 – Ne: Fundamental for CO2 –22Ne isotopologue, intermolecular bend, and symmetry breaking of the intramolecular CO2 bend

The infrared spectrum of CO2-Ne complex is studied in the region CO2 ν3 fundamental vibration. vibrational fundamentals for both CO2-20Ne and CO2-22Ne are analyzed combination with available microwave data. In addition, bands involving intermolecular bending mode observed, leading to determination frequency. For hot band transition, (0111) ← (0110), detection weak reveals symmetry breaking ν2 induced by Ne atom, out-of-plane component determined lie 0.057 cm−1 higher energy than in-plane component.