#### Subroutine to Generate Analytic Potential Energy Functions for the X
and A States of all Isotopologues of Br_{2}

Yukiya et
al. [J.Mol.Spectrosc. 283, 32-43 (2013)]
determined accurate analytic potential energy functions
for the X(^{1}Σ_{g}^{+}) and
A(^{3}Π_{1u}) states of diatomic Bromine from
combined-isotopologue direct-potential-fits to large bodies of high quality
spectroscopic data. A FORTRAN subroutine for generating
these functions may be downloaded by selecting the link below.
Solution of the radial Schrödinger equation with these
potentials should use reduced masses based on the masses of the two atoms
that may be incorporated though calls to subroutine 'MASSES.f' from program
**LEVEL**, a copy of which is attached to the subroutine listing.
The input parameters for this Br_{2} potential function
subroutine, 'potgenBr2.f', are the mass numbers of the isotopologue
of interest, an integer identifying which of the two potentials is to
be generated, and the array of radial distances at which the potential
is to be generated. To facilitate use of this special Br_{2}
potential energy subroutine in the general-purpose bound-state program
**LEVEL**, an alternate version this subroutine may be obtained by
modifying this subroutine as described by its internal Comments, with a
value of the integer ISTATE being specified at Line #78.

This subroutine for generating either of these potentials
for any chosen Br_{2} isotopologue is automatically
distributed (by e-mail) to those who fill in the following form:
Download Diatomic Bromine Potential Subroutine .

Similarly, sample input data files for performing Program **LEVEL**
calculations using any of these potentials are automatically
distributed (by e-mail) to those who fill in the following form:
Download Diatomic Bromine LEVEL Input data files .

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