Table of Contents
Laser Chemistry
Volume 11, Issue 3-4, Pages 253-258

Rotational Analysis of the Rydberg Spectrum of Water

1Theoretical Chemistry Department, 5 South Parks Road, Oxford OX1 3UB, UK
2Laboratoire Aimé Cotton, Université de Paris Sud, Orsay 91405, France

Copyright © 1991 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Two techniques for rotational analysis of the nd1b1 Rydberg spectra of H2O and D2O are discussed—a Coriolis coupled asymmetric top model for the room temperature 3d1b1 cluster, and an extension of multichannel quantum defect theory to asymmetric tops, which is applied to recent jet cooled photoionization spectra of the nd1b1 series converging to the (100) vibrational levels of H2O+ and D2O+. The quantum defects obtained by the two methods are in good agreement and new ionization limits to the (100) series are derived: IP(100) = 104985(2) cm−1 for H2O and 104262(1) cm−1 for D2O.