Cyanide-bridged iron(II,III) cube with multistepped redox behavior

Masayuki Nihei; Mayumi Ui; Norihisa Hoshino; Hiroki Oshio

doi:10.1021/ic7024582

Cyanide-bridged iron(II,III) cube with multistepped redox behavior

Masayuki Nihei, Mayumi Ui, Norihisa Hoshino, Hiroki Oshio

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

50 Citations (Scopus)

Abstract

A building unit of Prussian blue was isolated as a cyanide-bridged iron cube of [Fe^II₄Fe^III₄(CN) ₁₂(tp)₈]·12DMF·2Et₂O· 4H₂O [tp^- = hydrotris(pyrazolyl)borate]. A cyclic voltammogram showed quasi-reversible four-stepped redox waves, which correspond to [Fe^III₄Fe^II₄]/[Fe ^III₅Fe^II₃]⁺, [Fe ^III₅Fe^II₃]⁺/[Fe ^III₆Fe^II₂]²⁺, [Fe ^III₆Fe^II₂]²⁺/[Fe ^III₇Fe^II₁]³⁺, and [Fe^III₇Fe^II₁]³⁺/[Fe ^III₈]⁴⁺ processes. Controlled potential absorption spectral measurements revealed two intervalence charge-transfer bands at 816 and 1000 nm, which were assigned to charge transfers from Fe ^II ions to adjacent and remote Fe^III ions, respectively, in the cube.

Original language	English
Pages (from-to)	6106-6108
Number of pages	3
Journal	Inorganic chemistry
Volume	47
Issue number	14
DOIs	https://doi.org/10.1021/ic7024582
Publication status	Published - 2008 Jul 21
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

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title = "Cyanide-bridged iron(II,III) cube with multistepped redox behavior",

abstract = "A building unit of Prussian blue was isolated as a cyanide-bridged iron cube of [FeII4FeIII4(CN) 12(tp)8]·12DMF·2Et2O· 4H2O [tp- = hydrotris(pyrazolyl)borate]. A cyclic voltammogram showed quasi-reversible four-stepped redox waves, which correspond to [FeIII4FeII4]/[Fe III5FeII3]+, [Fe III5FeII3]+/[Fe III6FeII2]2+, [Fe III6FeII2]2+/[Fe III7FeII1]3+, and [FeIII7FeII1]3+/[Fe III8]4+ processes. Controlled potential absorption spectral measurements revealed two intervalence charge-transfer bands at 816 and 1000 nm, which were assigned to charge transfers from Fe II ions to adjacent and remote FeIII ions, respectively, in the cube.",

author = "Masayuki Nihei and Mayumi Ui and Norihisa Hoshino and Hiroki Oshio",

year = "2008",

month = jul,

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doi = "10.1021/ic7024582",

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journal = "Inorganic Chemistry",

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T1 - Cyanide-bridged iron(II,III) cube with multistepped redox behavior

AU - Nihei, Masayuki

AU - Ui, Mayumi

AU - Hoshino, Norihisa

AU - Oshio, Hiroki

PY - 2008/7/21

Y1 - 2008/7/21

N2 - A building unit of Prussian blue was isolated as a cyanide-bridged iron cube of [FeII4FeIII4(CN) 12(tp)8]·12DMF·2Et2O· 4H2O [tp- = hydrotris(pyrazolyl)borate]. A cyclic voltammogram showed quasi-reversible four-stepped redox waves, which correspond to [FeIII4FeII4]/[Fe III5FeII3]+, [Fe III5FeII3]+/[Fe III6FeII2]2+, [Fe III6FeII2]2+/[Fe III7FeII1]3+, and [FeIII7FeII1]3+/[Fe III8]4+ processes. Controlled potential absorption spectral measurements revealed two intervalence charge-transfer bands at 816 and 1000 nm, which were assigned to charge transfers from Fe II ions to adjacent and remote FeIII ions, respectively, in the cube.

AB - A building unit of Prussian blue was isolated as a cyanide-bridged iron cube of [FeII4FeIII4(CN) 12(tp)8]·12DMF·2Et2O· 4H2O [tp- = hydrotris(pyrazolyl)borate]. A cyclic voltammogram showed quasi-reversible four-stepped redox waves, which correspond to [FeIII4FeII4]/[Fe III5FeII3]+, [Fe III5FeII3]+/[Fe III6FeII2]2+, [Fe III6FeII2]2+/[Fe III7FeII1]3+, and [FeIII7FeII1]3+/[Fe III8]4+ processes. Controlled potential absorption spectral measurements revealed two intervalence charge-transfer bands at 816 and 1000 nm, which were assigned to charge transfers from Fe II ions to adjacent and remote FeIII ions, respectively, in the cube.

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Cyanide-bridged iron(II,III) cube with multistepped redox behavior

Abstract

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