Nitridic Analogs of Micas AESi₃ P₄ N₁₀ (NH)₂ (AE=Mg, Mg_0.94 Ca_0.06 , Ca, Sr).

ABSTRACT: We present the first nitridic analogs of micas, namely AESi₃ P₄ N₁₀ (NH)₂ (AE=Mg, Mg_0.94 Ca_0.06 , Ca, Sr), which were synthesized under high-pressure high-temperature conditions at 1400 °C and 8 GPa from the refractory nitrides P₃ N₅ and Si₃ N₄ , the respective alkaline earth amides, implementing NH₄ F as a mineralizer. The crystal structure was elucidated by single-crystal diffraction with microfocused synchrotron radiation, energy-dispersive X-ray spectroscopic (EDX) mapping with atomic resolution, powder X-ray diffraction, and solid-state NMR. The structures consist of typical tetrahedra-octahedra-tetrahedra (T-O-T) layers with P occupying T and Si occupying O layers,

SUBMITTER: Eisenburger L 

PROVIDER: S-EPMC9300002 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature