  We discuss results obtained recently for a quantum-mechanical model given by
a neutral particle with a magnetic quadrupole moment in a radial electric field
and a scalar potential proportional to the radial variable in cylindrical
coordinates that also includes the noninertial effects of a rotating reference
frame. We show that the conjectured allowed values of the cyclotron frequency
are a mere artifact of the truncation of the power series used to solve the
radial eigenvalue equation. Our analysis proves that the analytical expression
for the eigenvalues are far from correct.
