A&A 406, 383-384 (2003)
DOI: 10.1051/0004-6361:20030774

Zero point energy of H and its deuterated isotopomers

J. Ramanlal, O. L. Polyansky and J. Tennyson

Department of Physics and Astronomy, University College London, Gower St., London WC1E 6BT, UK
(Received 10 April 2003 / Accepted 15 May 2003 )

Abstract
Vibrational zero-point energies are reported for the H ₃⁺, H ₂D ⁺, D ₂H ⁺ and D ₃⁺ molecular ions, calculated using an ultra-high accuracy ab initio procedure. These data are compared with older literature values.

Key words: astrochemistry -- molecular data -- molecular processes, ISM: general -- ISM molecules -- ISM: kinematic and dynamics

Offprint request: J. Tennyson, j.tennyson@ucl.ac.uk

© ESO 2003

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