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2000 (1)
1Author    Hidenari Inoue3, Shuichi Narino3, Naoki Yoshioka3, Ekkehard FluckbRequires cookie*
 Title    Thermal Decomposition of Prussian Blue Analogues of the Type Fe[Fe(CN)5NO]  
 Abstract    The structure and properties o f the thermal decomposition products of Fe[Fe(CN)sNO] • x H2O (x = 5 ~ 6) have been studied by M össbauer 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 o f 103 than that o f 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. 
  Reference    Z. Naturforsch. 55b, 685—690 (2000); received April 5 2000 
  Published    2000 
  Keywords    Prussian Blue Analogues, Mixed-Valence State, Thermal Decomposition 
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 TEI-XML for    default:Reihe_B/55/ZNB-2000-55b-0685.pdf 
 Identifier    ZNB-2000-55b-0685 
 Volume    55