The collective modes of the tri-nuclear molecule ⁹⁶Sr+ ¹⁰Be+ ¹⁴⁶Ba, observed in recent cold fission decay of ²⁵²Cf into three clusters, are theoretically investigated. The main excitations are rotations, the butterfly and belly-dancer modes and - and -vibrations. Due to the presence of the Be nucleus, butterfly excitation energies are shifted up to 2 MeV. There are only a few collective states below 1 MeV which are not rotational. The first rotational level of spin 2⁺ lies at an energy of about 6 keV. Proposals of how these collective modes may be measured are suggested.