Structure, optical and magnetic behaviour of meso- tetraphenylporphyrinatoiron(III) tetracyanoethenide, [FeIII(TPP)] +[TCNE].-

Shinji Mikami, Ken Ichi Sugiura, Tatsuo Maruta, Yonezo Maeda, Masaaki Ohba, Naoki Usuki, Hisashi Okawa, Tomoyuki Akutagawa, Sadafumi Nisihara, Takayoshi Nakamura, Kentaro Iwasaki, Nobuyuki Miyazaki, Shojun Hino, Eiji Asato, Joel S. Miller, Yoshiteru Sakata

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Abstract

The direct redox reaction between tetracyanoethylene (TCNE) and meso-tetraphenylporphyrinatoiron(II), [FeII(TPP)], formed the electron transfer salt (ETS) [FeIII(TPP)][TCNE], which has been structurally, spectroscopically, and magnetically characterized. It has an extended one-dimensional linear chain with coordination polymer motif comprised of [FeIII(TPP)]+ and bridging μ-[TCNE].- with Fe-NTCNE distance 1.889(2) Å. This coordination geometry is consistent with a low-spin iron(III) ion, i.e., one electron transfer from FeII to TCNE produces S = 1/2 [FeIII(TPP)]+ having a (dxy)2(dyz,dzx)3 configuration and S = 1/2 [TCNE].-. 57Fe Mössbauer data, δ = 0.28 mm s-1 and ΔE = 2.19 mm s-1 at 77 K, also support the low-spin state. The room temperature magnetic moment of the ETS, 1.20 μB, arises from two S = 1/2 systems having antiferromagnetic coupling, -190 cm-1 (H = -2Σ J ijSiSj).

Original languageEnglish
Pages (from-to)448-455
Number of pages8
JournalJournal of the Chemical Society, Dalton Transactions
Issue number4
DOIs
Publication statusPublished - Dec 1 2001

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Electrons
Salts
Redox reactions
Magnetic moments
Polymers
Iron
tetracyanoethylene
Ions
Geometry
Temperature

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

Cite this

Structure, optical and magnetic behaviour of meso- tetraphenylporphyrinatoiron(III) tetracyanoethenide, [FeIII(TPP)] +[TCNE].-. / Mikami, Shinji; Sugiura, Ken Ichi; Maruta, Tatsuo; Maeda, Yonezo; Ohba, Masaaki; Usuki, Naoki; Okawa, Hisashi; Akutagawa, Tomoyuki; Nisihara, Sadafumi; Nakamura, Takayoshi; Iwasaki, Kentaro; Miyazaki, Nobuyuki; Hino, Shojun; Asato, Eiji; Miller, Joel S.; Sakata, Yoshiteru.

In: Journal of the Chemical Society, Dalton Transactions, No. 4, 01.12.2001, p. 448-455.

Research output: Contribution to journalArticle

Mikami, S, Sugiura, KI, Maruta, T, Maeda, Y, Ohba, M, Usuki, N, Okawa, H, Akutagawa, T, Nisihara, S, Nakamura, T, Iwasaki, K, Miyazaki, N, Hino, S, Asato, E, Miller, JS & Sakata, Y 2001, 'Structure, optical and magnetic behaviour of meso- tetraphenylporphyrinatoiron(III) tetracyanoethenide, [FeIII(TPP)] +[TCNE].-', Journal of the Chemical Society, Dalton Transactions, no. 4, pp. 448-455. https://doi.org/10.1039/b007931f
Mikami, Shinji ; Sugiura, Ken Ichi ; Maruta, Tatsuo ; Maeda, Yonezo ; Ohba, Masaaki ; Usuki, Naoki ; Okawa, Hisashi ; Akutagawa, Tomoyuki ; Nisihara, Sadafumi ; Nakamura, Takayoshi ; Iwasaki, Kentaro ; Miyazaki, Nobuyuki ; Hino, Shojun ; Asato, Eiji ; Miller, Joel S. ; Sakata, Yoshiteru. / Structure, optical and magnetic behaviour of meso- tetraphenylporphyrinatoiron(III) tetracyanoethenide, [FeIII(TPP)] +[TCNE].-. In: Journal of the Chemical Society, Dalton Transactions. 2001 ; No. 4. pp. 448-455.
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AU - Maeda, Yonezo

AU - Ohba, Masaaki

AU - Usuki, Naoki

AU - Okawa, Hisashi

AU - Akutagawa, Tomoyuki

AU - Nisihara, Sadafumi

AU - Nakamura, Takayoshi

AU - Iwasaki, Kentaro

AU - Miyazaki, Nobuyuki

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AU - Sakata, Yoshiteru

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