Observation of an iron(II) spin-crossover in an iron octacyanoniobate-based magnet

Michio Arai; Wataru Kosaka; Tomoyuki Matsuda; Shin Ichi Ohkoshi

doi:10.1002/anie.200802266

Observation of an iron(II) spin-crossover in an iron octacyanoniobate-based magnet

Michio Arai, Wataru Kosaka, Tomoyuki Matsuda, Shin Ichi Ohkoshi

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

72 Citations (Scopus)

Abstract

(Figure Presented) A spin-crossover from Fe ^II (S = 2)-Nb ^IV -(S = 1/2)-Fe ^II (S = 2) to Fe ^II (S = 0)-Nb ^IV -(S = 1/2)-Fe ^II (S = 2) occurs in Fe ₂ [Nb(CN) ₈ ]·3-pyCH ₂ OH) ₈ ·.6H ₂ O (3-py = 3-pyridyl) with decreasing temperature (see picture; red Fe, blue Nb). The low-temperature phase shows ferrimagnetism with a Curie temperature of 12 K owing to an antiferromagnetic interaction between the remaining Fe ^II (S = 2) and the Nb ^IV (S = 1/2) centers.

Original language	English
Pages (from-to)	6885-6887
Number of pages	3
Journal	Angewandte Chemie - International Edition
Volume	47
Issue number	36
DOIs	https://doi.org/10.1002/anie.200802266
Publication status	Published - 2008 Aug 25
Externally published	Yes

Keywords

Coordination polymers
Iron
Magnetic properties
Niobium

ASJC Scopus subject areas

Catalysis
Chemistry(all)

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10.1002/anie.200802266

Cite this

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title = "Observation of an iron(II) spin-crossover in an iron octacyanoniobate-based magnet",

abstract = " (Figure Presented) A spin-crossover from Fe II (S = 2)-Nb IV -(S = 1/2)-Fe II (S = 2) to Fe II (S = 0)-Nb IV -(S = 1/2)-Fe II (S = 2) occurs in Fe 2 [Nb(CN) 8 ]·3-pyCH 2 OH) 8 ·.6H 2 O (3-py = 3-pyridyl) with decreasing temperature (see picture; red Fe, blue Nb). The low-temperature phase shows ferrimagnetism with a Curie temperature of 12 K owing to an antiferromagnetic interaction between the remaining Fe II (S = 2) and the Nb IV (S = 1/2) centers.",

keywords = "Coordination polymers, Iron, Magnetic properties, Niobium",

author = "Michio Arai and Wataru Kosaka and Tomoyuki Matsuda and Ohkoshi, {Shin Ichi}",

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doi = "10.1002/anie.200802266",

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journal = "Angewandte Chemie - International Edition",

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T1 - Observation of an iron(II) spin-crossover in an iron octacyanoniobate-based magnet

AU - Arai, Michio

AU - Kosaka, Wataru

AU - Matsuda, Tomoyuki

AU - Ohkoshi, Shin Ichi

PY - 2008/8/25

Y1 - 2008/8/25

N2 - (Figure Presented) A spin-crossover from Fe II (S = 2)-Nb IV -(S = 1/2)-Fe II (S = 2) to Fe II (S = 0)-Nb IV -(S = 1/2)-Fe II (S = 2) occurs in Fe 2 [Nb(CN) 8 ]·3-pyCH 2 OH) 8 ·.6H 2 O (3-py = 3-pyridyl) with decreasing temperature (see picture; red Fe, blue Nb). The low-temperature phase shows ferrimagnetism with a Curie temperature of 12 K owing to an antiferromagnetic interaction between the remaining Fe II (S = 2) and the Nb IV (S = 1/2) centers.

AB - (Figure Presented) A spin-crossover from Fe II (S = 2)-Nb IV -(S = 1/2)-Fe II (S = 2) to Fe II (S = 0)-Nb IV -(S = 1/2)-Fe II (S = 2) occurs in Fe 2 [Nb(CN) 8 ]·3-pyCH 2 OH) 8 ·.6H 2 O (3-py = 3-pyridyl) with decreasing temperature (see picture; red Fe, blue Nb). The low-temperature phase shows ferrimagnetism with a Curie temperature of 12 K owing to an antiferromagnetic interaction between the remaining Fe II (S = 2) and the Nb IV (S = 1/2) centers.

KW - Coordination polymers

KW - Iron

KW - Magnetic properties

KW - Niobium

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DO - 10.1002/anie.200802266

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JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

SN - 1433-7851

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ER -

Observation of an iron(II) spin-crossover in an iron octacyanoniobate-based magnet

Abstract

Keywords

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