Crystal Structure and ⁵⁷Fc Mössbauer Spectra of Hofmann-Type Pyrrole Clathrate, Fe(NH₃)₂Ni(CN)₄.2C₄H₅N

Takafumi Kitazawa Department of Chemistry, Faculty of Science, Toho University, Miyama, Funabashi, Chiba, 274, Japan

Yoshiyuki Sato Department of Chemistry, Faculty of Science, Toho University, Miyama, Funabashi, Chiba, 274, Japan

Yuji Gomi Department of Chemistry, Faculty of Science, Toho University, Miyama, Funabashi, Chiba, 274, Japan

Masashi Takahashi Department of Chemistry, Faculty of Science, Toho University, Miyama, Funabashi, Chiba, 274, Japan

Masuo Takeda Department of Chemistry, Faculty of Science, Toho University, Miyama, Funabashi, Chiba, 274, Japan

Abstract

The host framework of Fe(NH₃)₂Ni(CN)₄.2C₄H₅N 2 is isostructural with those of the other Hofmann-type clathrates. The pyrrole molecules in the interlayer space display the orientation disorder associated with the location of the nitrogen atom. The ⁵⁷Fe Mössbaucr spectra show that the iron atoms are in Fe(II) high-spin states at both RT and 78 K.

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Crystal Structure and ⁵⁷Fc Mössbauer Spectra of Hofmann-Type Pyrrole Clathrate, Fe(NH₃)₂Ni(CN)₄.2C₄H₅N

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Crystal Structure and 57Fc Mössbauer Spectra of Hofmann-Type Pyrrole Clathrate, Fe(NH3)2Ni(CN)4.2C4H5N

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Crystal Structure and ⁵⁷Fc Mössbauer Spectra of Hofmann-Type Pyrrole Clathrate, Fe(NH₃)₂Ni(CN)₄.2C₄H₅N