Complete characterization of the (D2O)2 ground state: high Ka rotation-tunneling levels.

@article{Keutsch2001CompleteCO,
  title={Complete characterization of the (D2O)2 ground state: high Ka rotation-tunneling levels.},
  author={Frank N. Keutsch and Nir Goldman and Evgeniy N. Karyakin and Heather A. Harker and Maria Eugenia Sanz and Claude Leforestier and Richard J Saykally},
  journal={Faraday discussions},
  year={2001},
  volume={118},
  pages={79-93; discussion 109-19}
}
We report the observation of extensive a- and c-type rotation-tunneling (RT) spectra of (D2O)2 for Ka = 0-4. These data allow quantification of molecular constants and tunneling splittings for a number of previously unobserved RT states of (D2O)2. The vibrational ground state has thus been characterized to energies as high as those of some of the intermolecular vibrations, and we present the first test of the VRT(ASP-W) potential at these high Ka states.