Molecular structures of five-coordinated halide ligated iron(III) porphyrin, porphycene, and corrphycene complexes

Yoshiki Ohgo, Saburo Neya, Takahisa Ikeue, Masashi Takahashi, Masuo Takeda, Noriaki Funasaki, Mikio Nakamura

Research output: Contribution to journalArticle

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Abstract

Molecular structures of 12 porphyrin analogues, FeIII(EtioP)X(1a-1d), FeIII(EtioCn)X(2a-2d), and FeIII(Etio-Pc)X(3a-3d), where X = F (a), Cl (b), Br (c), and I (d), are determined on the basis of X-ray crystallography. Combined analyses using Mössbauer, 1H NMR, and EPR spectroscopy as well as SQUID magnetometry have revealed that 3d exhibits a quite pure S = 3/2 spin state with a small amount of an S = 5/2 spin admixture. In contrast, all the other complexes show the S = 5/2 spin state with a small amount of the S = 3/2 spin admixture. The structural and spectroscopic data indicate a strong correlation between the spin states of the complexes and the core geometries such as Fe-N bond lengths, cavity areas, and ΔFe values.

Original languageEnglish
Pages (from-to)4627-4629
Number of pages3
JournalInorganic Chemistry
Volume41
Issue number18
DOIs
Publication statusPublished - 2002 Sep 9
Externally publishedYes

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X ray crystallography
SQUIDs
Porphyrins
Bond length
porphyrins
Molecular structure
halides
Paramagnetic resonance
molecular structure
Iron
Nuclear magnetic resonance
Spectroscopy
iron
Geometry
admixtures
crystallography
magnetic measurement
porphycene
Magnetometry
corrphycene

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this

Ohgo, Y., Neya, S., Ikeue, T., Takahashi, M., Takeda, M., Funasaki, N., & Nakamura, M. (2002). Molecular structures of five-coordinated halide ligated iron(III) porphyrin, porphycene, and corrphycene complexes. Inorganic Chemistry, 41(18), 4627-4629. https://doi.org/10.1021/ic0256866

Molecular structures of five-coordinated halide ligated iron(III) porphyrin, porphycene, and corrphycene complexes. / Ohgo, Yoshiki; Neya, Saburo; Ikeue, Takahisa; Takahashi, Masashi; Takeda, Masuo; Funasaki, Noriaki; Nakamura, Mikio.

In: Inorganic Chemistry, Vol. 41, No. 18, 09.09.2002, p. 4627-4629.

Research output: Contribution to journalArticle

Ohgo, Y, Neya, S, Ikeue, T, Takahashi, M, Takeda, M, Funasaki, N & Nakamura, M 2002, 'Molecular structures of five-coordinated halide ligated iron(III) porphyrin, porphycene, and corrphycene complexes', Inorganic Chemistry, vol. 41, no. 18, pp. 4627-4629. https://doi.org/10.1021/ic0256866
Ohgo, Yoshiki ; Neya, Saburo ; Ikeue, Takahisa ; Takahashi, Masashi ; Takeda, Masuo ; Funasaki, Noriaki ; Nakamura, Mikio. / Molecular structures of five-coordinated halide ligated iron(III) porphyrin, porphycene, and corrphycene complexes. In: Inorganic Chemistry. 2002 ; Vol. 41, No. 18. pp. 4627-4629.
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AU - Nakamura, Mikio

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