Water dimer tunneling states with K=0

Odutola, J. A. ; Hu, T. A. ; Prinslow, D. ; O'dell, S. E. ; Dyke, T. R.

College Park, Md. : American Institute of Physics (AIP)
Published 1988
ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
Chemistry and Pharmacology
Notes:
Tunneling–rotational transitions of water dimer with K=0 have been observed and assigned in the radio frequency and microwave region of the spectrum. Rotational constants and electric dipole moments were obtained from these spectra. The rotational constants show surprisingly large variations with tunneling state for (H2O)2, but not for (D2O)2, indicating that the former species may be following behavior characteristic of a low-barrier tunneling case. A tunneling splitting of 19 526.73 MHz has been observed for water dimer and 1172.23 MHz for the completely deuterated species. The nuclear hyperfine structure of (H2O)2 radio frequency transitions has been assigned and was quite useful for determining the symmetries of the observed states. The nuclear spin–spin coupling constants have been interpreted in terms of the tunneling state of observation and of the water dimer structure.
Type of Medium:
Electronic Resource
URL: