μ-Oxido-bis[(5,10,15,20-tetraphenylporphyrinato-κ4N,N′,N′′,N′′′)manganese(III)]

Abstract

In the crystal structure of the title oxido-bridged binuclear complex, [MnIII(TPP)]2O (TPP = tetraphenylporphyrinate, C44H28N4) or [Mn2(C44H28N4)2O], the two pentacoordinate manganese(III) ions are bridged by a single oxido ligand, with an Mn—O distance of 1.7600 (3) Å and an Mn—O—Mn bridging angle of 176.1 (2)°. The bridging O2− ligand is located on a twofold rotation axis, resulting in point group 2 for the entire complex. The MnIII atom is displaced out of the 24-atom mean plane of the porphyrine entity by 0.52 Å. C—H...π and π–π interactions help to stabilize the molecular packing within the crystal structure.

Keywords

• manganese porphyrin
• μ-oxido bridging mode
• crystal structure