The reaction of Ru\sb6C(CO)\sb17Ru\sb6C(CO)\sb17 with C\sb60\sb60 followed by carbonyl substitution with bis(diphenylphosphino)methane gave Ru\sb6C(CO)\sb12(dppm)(μ\sb3Ru\sb6C(CO)\sb12(dppm)(μ\sb3-η\sp2,η\sp2,η\sp2η\sp2,η\sp2,η\sp2-C\sb60).\sb60). A related arene-Ru\sb6\sb6C compound, Ru\sb6C(CO)\sb13{PPh\sb2(μRu\sb6C(CO)\sb13{PPh\sb2(μ-η\sp6η\sp6-C\sb6H\sb6)},C\sb6H\sb6)}, was obtained by thermolysis of Ru\sb6C(CO)\sb16PPh\sb3,Ru\sb6C(CO)\sb16PPh\sb3, in which the tendency of the Ru\sb6\sb6C framework to form arene complexes is extend to a coordinated triphenylphosphine moiety, leading to (reversible) coordination of a phenyl ring to an adjacent ruthenium center in the cluster unit.