Potential energy surfaces for interactions of H2O with H2, N2 and O2: A hyperspherical harmonics representation, and a minimal model for the H2O-rare-gas-atom systems

► Hyperspherical harmonics expansion of interaction potentials. ► Representation of the potential energy surface of the H2O-H2, N2, and O2 systems. ► Representation of the potential energy surface of the H2O-rare-gas systems. ► Comparison with other theoretical results. ► Comparison with experimental results.