Crystal structure of 2-[2-(pyridin-3-yl)diazen-1-yl]aniline

Peters, Morten K; Näther, Christian; Herges, Rainer

doi:10.1107/s2056989018008605

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“…Porphyrins have a wide range of applications. For example, they are useful in photodynamic therapy (PDT) (Ethirajan et al, 2011;Bonnett, 1995;Peters et al, 2018a), as powerful catalysts in reduction processes in nature and in technologically important reactions (Li & Zamble, 2009;Gosden et al, 1978), or as responsive contrast agents in functional magnetic resonance imaging (fMRI) (Venkataramani et al, 2011;Dommaschk et al, 2015;Peters et al, 2018b).…”

Section: Chemical Contextmentioning

confidence: 99%

Crystal structure of a polymorph of μ-oxido-bis[(5,10,15,20-tetraphenylporphyrinato)iron(III)]

2019

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The title compound, [Fe2(C44H28N4O)2O], was obtained as a by-product during the synthesis of FeIII tetraphenylporphyrin perchlorate. It crystallizes as a new polymorphic modification in addition to the orthorhombic form previously reported [Hoffman et al. (1972). J. Am. Chem. Soc. 94, 3620–3626; Swepston & Ibers (1985) Acta Cryst. C41, 671–673; Kooijmann et al. (2007). Private Communication (refcode 667666). CCDC, Cambridge, England]. In its crystal structure, the two crystallographically independent FeIII cations are coordinated in a square-planar environment by the four N atoms of a tetraphenylporphyrin ligand. The FeIII-tetraphenylporphyrine units are linked by a μ2-oxido ligand into a dimer with an Fe—O—Fe angle close to linearity. The final coordination sphere for each FeIII atom is square-pyramidal with the μ2-oxido ligand in the apical position. The crystal under investigation consisted of two domains in a ratio of 0.691 (3): 0.309 (3).

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Section: Chemical Contextmentioning

confidence: 99%

Crystal structure of a polymorph of μ-oxido-bis[(5,10,15,20-tetraphenylporphyrinato)iron(III)]

2019

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Crystal structure of 2-[2-(pyridin-3-yl)diazen-1-yl]aniline

Abstract: In the crystal structure of the title compound the molecules are coplanar and are linked into helical chains via N—H⋯N hydrogen bonding between one of the amino H atoms and the pyridine N atoms.

Cited by 1 publication

References 22 publications

Crystal structure of a polymorph of μ-oxido-bis[(5,10,15,20-tetraphenylporphyrinato)iron(III)]

Crystal structure of a polymorph of μ-oxido-bis[(5,10,15,20-tetraphenylporphyrinato)iron(III)]

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Crystal structure of 2-[2-(pyridin-3-yl)diazen-1-yl]aniline

Abstract: In the crystal structure of the title compound the mol­ecules are coplanar and are linked into helical chains via N—H⋯N hydrogen bonding between one of the amino H atoms and the pyridine N atoms.

Cited by 1 publication

References 22 publications

Crystal structure of a polymorph of μ-oxido-bis[(5,10,15,20-tetraphenylporphyrinato)iron(III)]

Crystal structure of a polymorph of μ-oxido-bis[(5,10,15,20-tetraphenylporphyrinato)iron(III)]

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Abstract: In the crystal structure of the title compound the molecules are coplanar and are linked into helical chains via N—H⋯N hydrogen bonding between one of the amino H atoms and the pyridine N atoms.