To date, efforts to chemically purify metallofullerenes have focused primarily on the dominant endohedral species, e.g., M₃N@C₈₀. These metallic nitride clusters trapped inside C₈₀ cages often represent the more abundant metallofullerenes in soot extract. We have made progress with chemically isolating di-metal (M₂@C₈₂) and metal carbide (M₂C₂@C₈₀, M₃C₂@C₈₀, M₄C₂@C₈₀) metallofullerenes. Other less common endohedrals that we are chemically purifying include M₃N@C₆₈, M₃N@C₇₈, M₃N@C₈₈, and M₃N@C₉₂. In this presentation, we will discuss our recent results to chemically isolate these less-common metallofullerenes.