Structure and internal rotation of H2O–CO2, HDO–CO2, and D2O–CO2 van der Waals complexes

Abstract
The radio frequency and microwave spectra of H2O–CO2, HDO–CO2, and D2O–CO2 have been measured by molecular beam electric resonance spectroscopy. Rotational constants, deuterium quadrupole coupling constants, and dipole moments are reported.