Permutationally Invariant Fitting of Many-Body, Non-covalent Interactions with Application to Three-Body Methane–Water–Water

Calculations of the IR spectra of bend fundamentals of (H2O)n=3,4,5 using the WHBB_2 potential and dipole moment surfaces

Stimulated by new experiments from the Havenith group, we report IR spectra of the bend fundamentals of (H₂O)_n=3,4,5, using anharmonic, coupled-mode VSCF/VCI calculations, done in a subspace of modes consisting of all the monomer bends plus the hydrogen-bonded OH stretches.

Rovibrational transitions of the methane–water dimer from intermolecular quantum dynamical computations

Quantum dynamical computations of the methane–water dimer explain the far-infrared spectrum of this important prototype of a water–hydrocarbon interaction.