The reaction of a saddle-distorted Mo(V)-dodecaphenylporphyrin complex and a Keggin-type polyoxometalate gives a discrete and nanosized molecule, [{Mo(DPP)(O)}2(H2SiW12O40)], which involves direct coordination between the Mo(V) centers and terminal oxo groups of the polyoxometalate and exhibits excellent stability in solution to show reversible multi-redox processes.
