Li4[FeN2]: A Nitridoferrate(II) with Anions Isosteric with CO2. A Defect 
Variant of the Li3N Type Structure

Gudat, Axel; Kniep, Rüdiger; Rabenau, Albrecht

doi:10.1002/anie.199101991

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Li₄[FeN₂]: A Nitridoferrate(II) with Anions Isosteric with CO₂. A Defect Variant of the Li₃N Type Structure

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Citation

Gudat, A., Kniep, R., & Rabenau, A. (1991). Li₄[FeN₂]: A Nitridoferrate(II) with Anions Isosteric with CO₂. A Defect Variant of the Li₃N Type Structure. Angewandte Chemie International Edition, 30(2), 199-200. doi:10.1002/anie.199101991.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0019-B7E5-D

Abstract

The continual place-changing of iron atoms in the mixed crystal phases of composition Li4Fe1.04N2, during which the slightly corrigated Li2N layers are maintained, leads in a topotactic reaction to the formation of Li4[FeN2]. This presumably metastable nitridoferrate(II) is one of the lesser known nitridoferrates. Li4[FeN2] crystallizes in a defect variant of the Li3N structure (Li2Fe0.5-square-0.5N), in which Li2N layers are bound by linearly coordinated Fe(II) centers.