The Reduced Nitridogermanates(III) Ca6[Ge2N6] and Sr6[Ge2N6] with Ge-Ge Bonds

Link, L.; Pathak, M.; Jach, F.; Koželj, P.; Ormeci, A.; Höhn, P.; Niewa, R.

doi:10.1002/anie.202017270

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The Reduced Nitridogermanates(III) Ca₆[Ge₂N₆] and Sr₆[Ge₂N₆] with Ge-Ge Bonds

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Pathak, M.
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Koželj, P.
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Ormeci, A.
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Höhn, P.
Peter Höhn, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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引用

Link, L., Pathak, M., Jach, F., Koželj, P., Ormeci, A., Höhn, P., & Niewa, R. (2021). The Reduced Nitridogermanates(III) Ca₆[Ge₂N₆] and Sr₆[Ge₂N₆] with Ge-Ge Bonds. Angewandte Chemie International Edition, 60(14), 7691-7696. doi:10.1002/anie.202017270.

引用: https://hdl.handle.net/21.11116/0000-0008-175C-8

要旨

The first nitridogermanates(III) Ca-6[Ge2N6] and Sr-6[Ge2N6] were synthesized from sodium flux and structurally characterized by powder and single crystal X-ray diffraction, respectively. They crystallize isostructurally to each other and homeotypic to Ca-6[Cr2N6]H in space group R3? . They feature unprecedented, mutually isolated, ethane-like [(Ge2N6)-N-III](12-) anions in a staggered conformation. The compounds are semiconductors according to resistivity measurements and electronic structure calculations, yielding band gaps of 1.1 eV for Ca-6[Ge2N6] and 0.2 eV for Sr-6[Ge2N6].