  At arbitrary temperature $T$, we solve for the dynamics of single molecule
magnets composed of three classical Heisenberg spins either on a chain with two
equal exchange constants $J_1$, or on an isosceles triangle with a third,
different exchange constant $J_2$. As $T\rightrarrow\infty$, the Fourier
transforms and long-time asymptotic behaviors of the two-spin time correlation
functions are evaluated exactly. The lack of translational symmetry on a chain
or an isosceles triangle yields time correlation functions that differ
strikingly from those on an equilateral trinagle with $J_1=J_2$. At low $T$,
the Fourier transforms of the two autocorrelation functions with $J_1\ne J_2$
show one and four modes, respectively. For a semi-infinite $J_2/J_1$ range, one
mode is a central peak. At the origin of this range, this mode has a novel
scaling form.
