Neutral catecholate derivatives of manganese and iron: synthesis and characterization of the metal-oxygen cubane-like species M4(DBCat)4(py)6 (M = Mn, Fe), the trinuclear complex Mn3(DBCat)4(py)4, and the dimers M2(DBCat)2(py)n (M = Mn, n = 6; M = Fe, n = 4,6) | doi.page