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

研究成果: Article査読

12 被引用数 (Scopus)

抄録

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).

本文言語English
ページ(範囲)448-455
ページ数8
ジャーナルJournal of the Chemical Society, Dalton Transactions
4
DOI
出版ステータスPublished - 2001 12 1
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)

フィンガープリント

「Structure, optical and magnetic behaviour of meso- tetraphenylporphyrinatoiron(III) tetracyanoethenide, [Fe<sup>III</sup>(TPP)] <sup>+</sup>[TCNE]<sup>.-</sup>」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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