Dehydration-Induced Charge Transfer in Ni3[Fe(CN)6]2ź15H2Oe T

• Autorzy: Liu M. , Bian X. F. , Xia Y. F. , Bao Z. , Xu M. X.
• Języki publikacji: EN

Abstrakty

EN

Molecular magnet nickel(II) hexacyanoferrate(III), powder Ni3[Fe(CN)6]2ź15H2O, was prepared by coprecipitation method. The coprecipitated powder was annealed in vacuum at different temperatures of 80, 100, 120, and 140 graduate C. Water molecules contained in Prussian blue analogues were removed by heating. The effects of dehydration on its charge transfer properties were studied by Fourier-transform infrared and Mössbauer measurements. It was found that the FeIII–CN–NiII state is the major structure in the coprecipitated form, while the FeII–CN–NiIII bond is formed in the annealed samples. The dehydration of NiII ferricyanide above 80°C induces an inner charge transfer from NiII towards FeIII to form the mixed valence system Ni(II) Ni(III) ferri-ferro-cyanide.

Słowa kluczowe

EN

nickel hexacyanoferrate; dehydration; infrared spectroscopy; Mössbauer spectroscopy; charge transfer

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2009
• Tom: Vol. 83, nr 10
• Strony: 1729--1735
• Opis fizyczny: Bibliogr. 23 poz., rys.

Twórcy

autor

Liu M.

autor

Bian X. F.

autor

Xia Y. F.

autor

Bao Z.

autor

Xu M. X.

• Department of Physics, South east University, Nanjing 210096, China Tel.: [phone](ext.8309); fax: [phone](ext.8204,

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