An alternative solution of diatomic molecules

The spectrum of r (-1) and r (-2) type potentials of diatomic molecules in radial Schrodinger equation are calculated by using the formalism of asymptotic iteration method. The alternative method is used to solve eigenvalues and eigenfunctions of Mie potential, Kratzer-Fues potential, Coulomb potential, and Pseudoharmonic potential by determining the alpha, beta, gamma and sigma parameters.