In this paper general working equations for the Morse (r-r,)' rnatrix elements are given. These equations can be used to calculate the diagonal (m = n ) matrix elements and, for the off-diagonal (m≠n) elements, are simpler to use than the ones currently available in the literature. Also, in this paper a new approach is given which allows one to obtain simple formulas, in closed forrn, for the off-diagonal matrix elements. Explicit expressions are given for 1 = 1, 2, and 3.
Physical review. A, General physics. New York. Vol. 21, no. 6 (June 1980), p. 1829-1834