The Crystal and Molecular Structure of Bis(methanol)-α,β,γ,δ-tetraphenylporphinatomanganese(III) Perchlorate-Methanol. A Molecular Structure Relevant to the Intermediate-spin Six Coordinate Iron(III) Porphyrin

Article abstract of DOI:10.1246/bcsj.56.422

Bis(methanol)-α,β,γ,δ-tetraphenylporphinatomanganese(III) perchlorate crystallizes as the methanol solvate in the triclinic system, space group P<*>, a = 16.225(8), b = 13.167(7), c = 10.793(5) Angstroem, α = 106.51(5) deg, β = 100.36(5) deg, γ = 101.60(5) deg, and Z = 2.The structure was determined by the heavy-atom method and the block-diagonal least-squares refinement using a total of 9992 reflections.The final R and R_w values are 6.3 and 7.1 percent, respectively.Two slightly different but substantially identical coordination spheres of high-spin Mn(III) porphyrin were revealed.The long axial Mn-O(methanol) bond distance and medium-sized porphyrin core were emphasized as structural characteristics in relation to the intermediate-spin iron(III) porphyrin.