Synthesis, characterization, and chiral assembly structure of a self-complementary iron(III) complex, [FeIII(H2L 5-Me)(HL5-Me)](ClO4)2·EtOH (H2L5-Me: N-[(5-Methylimidazol-4-yl)methylidene]histamine)

Hiroaki Hagiwara; Koshiro Nishi; Naohide Matsumoto; Yukinari Sunatsuki; Masaaki Kojima; Seiichiro Iijima

doi:10.1246/bcsj.20100299

Synthesis, characterization, and chiral assembly structure of a self-complementary iron(III) complex, [Fe^III(H₂L ^5-Me)(HL^5-Me)](ClO₄)₂·EtOH (H₂L^5-Me: N-[(5-Methylimidazol-4-yl)methylidene]histamine)

Hiroaki Hagiwara, Koshiro Nishi, Naohide Matsumoto, Yukinari Sunatsuki, Masaaki Kojima, Seiichiro Iijima

Advanced Science Research Center

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

A low-spin Fe^III complex, [Fe^III(H₂L ^5-Me)(HL^5-Me)](ClO₄)₂·EtOH, was prepared by the reaction of Fe^II(ClO₄) ₂·6H₂O and H₂L^5-Me in ethanol with 1:2 molar ratio and in air, where H₂L^5-Me: N-[(5-methylimidazol-4-yl)methylidene]histamine. Each complex molecule of [Fe(H₂L^5-Me)(HL^5-Me)]²⁺ has both fully protonated ligand and mono-deprotonated ligand and acts as a chiral self-complementary building block to produce the homochiral imidazoleimidazolate-bridged zigzagchain structure. The X-ray analysis confirmed that the adjacent chains with the same chirality are stacked in a crystal lattice to give a chiral crystal (conglomerate). Low-spin Fe^III was revealed by the magnetic susceptibility and Mössbauer measurements.

Original language	English
Pages (from-to)	306-311
Number of pages	6
Journal	Bulletin of the Chemical Society of Japan
Volume	84
Issue number	3
DOIs	https://doi.org/10.1246/bcsj.20100299
Publication status	Published - Mar 21 2011

ASJC Scopus subject areas

Chemistry(all)

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Hagiwara, H., Nishi, K., Matsumoto, N., Sunatsuki, Y., Kojima, M., & Iijima, S. (2011). Synthesis, characterization, and chiral assembly structure of a self-complementary iron(III) complex, [Fe^III(H₂L ^5-Me)(HL^5-Me)](ClO₄)₂·EtOH (H₂L^5-Me: N-[(5-Methylimidazol-4-yl)methylidene]histamine). Bulletin of the Chemical Society of Japan, 84(3), 306-311. https://doi.org/10.1246/bcsj.20100299

Synthesis, characterization, and chiral assembly structure of a self-complementary iron(III) complex, [Fe^III(H₂L ^5-Me)(HL^5-Me)](ClO₄)₂·EtOH (H₂L^5-Me : N-[(5-Methylimidazol-4-yl)methylidene]histamine). / Hagiwara, Hiroaki; Nishi, Koshiro; Matsumoto, Naohide et al.

In: Bulletin of the Chemical Society of Japan, Vol. 84, No. 3, 21.03.2011, p. 306-311.

Research output: Contribution to journal › Article › peer-review

Hagiwara, H, Nishi, K, Matsumoto, N, Sunatsuki, Y, Kojima, M & Iijima, S 2011, 'Synthesis, characterization, and chiral assembly structure of a self-complementary iron(III) complex, [Fe^III(H₂L ^5-Me)(HL^5-Me)](ClO₄)₂·EtOH (H₂L^5-Me: N-[(5-Methylimidazol-4-yl)methylidene]histamine)', Bulletin of the Chemical Society of Japan, vol. 84, no. 3, pp. 306-311. https://doi.org/10.1246/bcsj.20100299

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abstract = "A low-spin FeIII complex, [FeIII(H2L 5-Me)(HL5-Me)](ClO4)2·EtOH, was prepared by the reaction of FeII(ClO4) 2·6H2O and H2L5-Me in ethanol with 1:2 molar ratio and in air, where H2L5-Me: N-[(5-methylimidazol-4-yl)methylidene]histamine. Each complex molecule of [Fe(H2L5-Me)(HL5-Me)]2+ has both fully protonated ligand and mono-deprotonated ligand and acts as a chiral self-complementary building block to produce the homochiral imidazoleimidazolate-bridged zigzagchain structure. The X-ray analysis confirmed that the adjacent chains with the same chirality are stacked in a crystal lattice to give a chiral crystal (conglomerate). Low-spin FeIII was revealed by the magnetic susceptibility and M{\"o}ssbauer measurements.",

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AB - A low-spin FeIII complex, [FeIII(H2L 5-Me)(HL5-Me)](ClO4)2·EtOH, was prepared by the reaction of FeII(ClO4) 2·6H2O and H2L5-Me in ethanol with 1:2 molar ratio and in air, where H2L5-Me: N-[(5-methylimidazol-4-yl)methylidene]histamine. Each complex molecule of [Fe(H2L5-Me)(HL5-Me)]2+ has both fully protonated ligand and mono-deprotonated ligand and acts as a chiral self-complementary building block to produce the homochiral imidazoleimidazolate-bridged zigzagchain structure. The X-ray analysis confirmed that the adjacent chains with the same chirality are stacked in a crystal lattice to give a chiral crystal (conglomerate). Low-spin FeIII was revealed by the magnetic susceptibility and Mössbauer measurements.

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Synthesis, characterization, and chiral assembly structure of a self-complementary iron(III) complex, [Fe^III(H₂L ^5-Me)(HL^5-Me)](ClO₄)₂·EtOH (H₂L^5-Me: N-[(5-Methylimidazol-4-yl)methylidene]histamine)

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