Noble gas halides

Approximations for the inner branch of potential curves of diatomic molecules

“…A similar remark applies for RbH, where the Morse potential gives the least error, but the difference from the results of eq. [3] is only marginal. For Ar2(X) the Morse potential gives the smallest error but the results from the other two potentials are pretty close to it.…”

“…In the remaining 41 cases, potential [3] gives the best results in 28 cases, the Morse potential in 9, and the Rydberg potential in 4. In the 4 cases for which the results from the Rydberg potential are better than those from [3], the difference is only marginal. A similar remark applies for RbH, where the Morse potential gives the least error, but the difference from the results of eq.…”

“…Rydberg Equation [3] For molecules for which D, is poorly known (or not known at all), but wexe is known and is positive, D, can be estimated (9) from where W = 2.1072 X 10-16, and then potential [3] can be applied.…”

“…The shape of the potential curve for this state is known only approximately, having been obtained through trial and error Franck-Condon calculations (1,3). The following discussion is subject to this caveat.…”

“…Potential [3] has been found to give quite good results for several molecular properties (1 1-14). Each of the three potentials has three parameters and these can be readily determined in terms of k,, r e , and D,.…”