Fully coupled six-dimensional calculations of the water dimer vibration-rotation-tunneling states...

Part II. Reports on the fully coupled six-dimensional calculations of the water dimmer vibration-rotation-tunneling (VRT) states with split Wigner pseudospectral (SWPS) approach. Feasible tunneling motions of the water dimmer and how they are manifested in the microwave and VRT spectra; Overview on the SWPS method and improvements applied to water dimmer.