Synthesis and characterization of a new kind of Mn2III,IV μ-oxo complex: [Mn2O2(terpy)2(H2O)2](NO3)3·6 H2O, terpy=2,2′:6′,2″-terpyridine

Reflections on small molecule manganese models that seek to mimic photosynthetic water oxidation chemistry

“…Collomb and coworkers explored this system via electrochemical methods [154,155]. These authors independently synthesized and reported the crystal structure of complex 24 at the same time as Brudvig and coworkers [156]. From these electrochemical studies in aqueous solution; oxidation of this 3+ .…”

Electro‐ and Photoinduced Formation and Transformation of Oxido‐Bridged Multinuclear Mn Complexes

“…The synthesis of another di‐μ‐oxido complex with a terpyridyl ligand, namely [Mn 2 III,IV O 2 (terpy) 2 (H 2 O) 2 ] 3+ , has been reported independently by us78 and the group of Brudvig and Crabtree 64. In this complex each metal centre contains a terminal water molecule as in the dinuclear ruthenium complex, [Ru 2 III O(bpy) 4 (H 2 O) 2 ] 4+ , which is known to act as an efficient molecular catalyst for water oxidation through the formation of the highly oxidized [Ru V =O] 2 species 79.…”

Bis(2,2′:6′,2′′-terpyridyl-κ3N)manganese(II) dinitrate dihydrate

“…The comproportion reaction between KMnO 4 and manganese(II) nitrate in the presence of bis(2,2 H :6 H ,2 HH -terpyridine) (terpy) gives the oxo-bridged Mn III ±Mn IV complex [Mn 2 O 2 (terpy) 2 (H 2 O) 2 ](NO 3 ) 3 Á6H 2 O (Collomb et al, 1999;Limburg et al, 1999). Preparation of this compound from a reaction mixture in acetonitrile/water also yields a signi®cant proportion of the title complex, bis(2,2 H :6 H ,2 HH -terpyridyl)manganese(II) dinitrate dihydrate, (I).…”