Program RKR1-16

RKR1-16 is R.J. Le Roy's program for applying the first-order semiclassical Rydberg-Klein-Rees procedure to calculate a pointwise potential energy function for a diatomic molecule from a knowlege of its spectroscopic constants. A full description of the most recent version of this code has been published in J. Quant. Spectrosc. Radiat. Transfer 186, 158 (2016), which is available at, while the corresponding source code and detailed Program Manual are available as Supplementary "Application" files at that www link. All future citations regarding use of this code should refer to this Journal Article,

If you wish to be Registered with the author as a user of this code, eligible to be sent any future bug fixes or updates, please fill in the following form Register RKR1-16 Registration. Note that the only non-cosmetic change from Version 2.0 of this code are that the new version uses the 2010 values of ħ, and its atomic masses subroutine incorporates the 2012 version of the atomic mass table.
I would be pleased to receive information regarding apparent or real malfunctions of this code or weakness in the documentation, please contact the author by e-mail: 'leroy AT'

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