Structure of the iron(III)-"capped" porphyrin, FeCl(C2-Cap), [5,10,15,20-[pyrromellitoyltetrakis(o-(oxyethoxy)phenyl)]porphyrinato]chloroiron(III)

Abstract

Structure of the Iron(III)-"Capped" Porphyrin, FeCl(C2-Cap), [5,10,15,phenyl)]porphyrinato]chloroiron(III)

Biphenyl-Strapped Diphenylporphyrins: Synthesis and Spectroscopic Characterization of a Series of Porphyrins with Ether-Linked Straps. Preliminary CO Binding Properties of Their Iron(II) Derivatives

“…The axial chloride ligand lies opposite to the strap. The coordination geometry of the iron center is similar to that in other five-coordinate systems of the FeCl(Porph) type . The perpendicular displacements of the porphyrin-core atoms of 6 -FeCl relative to their mean-plane indicate that the macrocycle is slightly domed and ruffled (Figure ).…”

“…It is connected to the presence of a strap covalently linked to an ortho position of both phenyl rings of the 5,15-diphenylporphyrin. The distortions of the porphyrin ring in 6 -FeCl are more severe than those occurring in the sterically protected chloroiron(III) porphyrin derivatives, [Fe III Cl(C2-cap)] and [Fe III Cl(C4-Cap)] . The average displacements of the porphyrin core atoms relative to their mean-plane is 0.15(1) Å in 6 -FeCl, the largest deviation being 0.35(1) Å.…”

13C CP/MAS NMR Studies of Hemoprotein Models with and without an Axial Hindered Base: 13C Shielding Tensors and Comparison with Hemoproteins and X-ray Structural Data

“…The refined X-ray crystal structure of D(1-MeIm) shows the presence of two crystallographically independent porphyrin molecules, with the Fe−C−O groups distorted from linearity (172.9 and 175.9°, Table ) and being tilted off the axis normal to the porphyrin (off-axis displacement for the carbon atoms being 0.17 and 0.12 Å, respectively) , and the cap is no longer parallel to the porphyrin plane. Interestingly, the porphyrin distortion is very small, presumably because of the constraint of the cap.…”

Crystal structure of 210,220-bis(2,6-dichlorophenyl)-4,7,12,15-tetraoxa-2(5,15)-nickel(II)porpyhrina-1,3(1,2)-dibenzena-cycloheptadecaphane-9-yne dichloromethane monosolvate

“…bis(4-nitrophenyl)porphyrinato)nickel(II) (Liu et al, 2016), (5,15-{2,2 0 -[propane-1,3-diylbis(oxy)]bis(5-t-butylphenyl)}-10,20-bis(4-nitrophenyl)porphyrinato)nickel(II) (Liu et al, 2016), (5,15-{2,2 0 -[butane-1,4-diylbis(oxy)]bis(5-t-butylphenyl)}10,20-bis(4-nitrophenyl)porphyrinato)nickel(II) (Liu et al, 2016), (5,15-{2,2 0 -[hexane-1,6-diylbis(oxy)]bis(5-t-butylphenyl)}-10,20-bis(4-nitrophenyl)porphyrinato)nickel(II) (Liu et al, 2016) (5,15-{2,2 0 -[heptane-1,7-diylbis(oxy)]bis(5-t-butylphenyl)}-10,20-bis(4-nitrophenyl)porphyrinato)nickel(II) (Liu et al, 2016) and (4,19-di-t-butyl-11,12,45,46-tetramethyl-8,15-dioxa-41,42,43,44-tetra-azanonacyclo[20.9.9.2 10,13 .1 23,26 .-1 28,31 .1 32,35 .1 37,40 .0 2,7 .0 16,21 ]hexatetraconta-1(31), 2,4,6,10,12,-16,18,20,22,24,26,28(43),29,32,34,36,38,40,45-icosaenato)nickel(II) (Gehrold et al, 2015). Furthermore, strapped iron (Sabat & Ibers, 1982), zinc (Gunter et al, 2004) and copper porphyrins (Liu et al, 2016) have also been reported.…”