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dc.contributor.authorWang, Xiao-Gang
dc.contributor.authorCarrington, Tucker
dc.date.accessioned2018-01-10T20:32:05Z
dc.date.available2018-01-10T20:32:05Z
dc.date.issued2015-03-30
dc.identifier.otherhttp://dx.doi.org/10.1063/1.4923339
dc.identifier.urihttp://hdl.handle.net/1974/23827
dc.description.abstractIn this paper, we report vibration-rotation-tunneling levels of the van der Waals clusters N2–H2O and N2–D2O computed from an ab initio potential energy surface. The only dynamical approximation is that the monomers are rigid. We use a symmetry adapted Lanczos algorithm and an uncoupled product basis set. The pattern of the cluster’s levels is complicated by splittings caused by H–H exchange tunneling (larger splitting) and N–N exchange tunneling (smaller splitting). An interesting result that emerges from our calculation is that whereas in N2–H2O, the symmetric H–H tunnelling state is below the anti-symmetric H–H tunnelling state for both K = 0 and K = 1, the order is reversed in N2–D2O for K = 1. The only experimental splitting measurements are the D–D exchange tunneling splittings reported by Zhu et al. [J. Chem. Phys. 139, 214309 (2013)] for N2–D2O in the v2 = 1 region of D2O. Due to the inverted order of the split levels, they measure the sum of the K = 0 and K = 1 tunneling splittings, which is in excellent agreement with our calculated result. Other splittings we predict, in particular those of N2–H2O, may guide future experiments.en_US
dc.language.isoenen_US
dc.subjectVibrationen_US
dc.subjectRotationen_US
dc.subjectTunneling Levelsen_US
dc.subjectN2–H2Oen_US
dc.subjectN2–D2Oen_US
dc.titleThe Vibration-Rotation-Tunneling Levels of N2–H2O and N2–D2Oen_US
dc.typeArticleen_US


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