Thermal decomposition of Prussian blue analogues of the type Fe[Fe(CN)5NO]

Hidenari Inoue, Shuichi Narino, Naoki Yoshioka, Ekkehard Fluck

研究成果: Article査読

11 被引用数 (Scopus)

抄録

The structure and properties of the thermal decomposition products of Fe[Fe(CN)5NO] · x H2O (x = 5∼6) have been studied by Mössbauer and FT-IR spectroscopy, X-ray diffraction and conductivity measurements. The valence state and coordination environment of the iron ions change dramatically when the nitrosyl ligand is eliminated by heat-treatment under vacuum at 200 °C. The dark blue product obtained by heat-treatment under vacuum at 250 °C is characteristic of the mixed-valence state in Prussian blue analogues. The electrical conductivity of the dark blue product is higher by a factor of 103 than that of the starting material because of the mixed-valence state between Fe(III)[Fe(II)(CN)5] and Fe(II)[Fe(III)(CN)5]. Heat-treatment under vacuum at 350°C yields a new product Fe(II)[Fe(II)(CN)4] the crystal structure of which is different from that of the starting material. The electrical conductivity of the decomposition product obtained at 350 °C is about 105 times higher than that of the starting material.

本文言語English
ページ(範囲)685-690
ページ数6
ジャーナルZeitschrift fur Naturforschung - Section B Journal of Chemical Sciences
55
8
DOI
出版ステータスPublished - 2000 8月

ASJC Scopus subject areas

  • 化学 (全般)

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