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Vogel, Sebastian; Buda, Amalina T.; Schnick, Wolfgang (2018): United in Nitride: The Highly Condensed Boron Phosphorus Nitride BP3N6. In: Angewandte Chemie-International Edition, Vol. 57, No. 40: pp. 13202-13205
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Abstract

Owing to intriguing materials properties non-metal nitrides are of special interest for both, solid-state chemistry and materials science. Mixed ternary non-metal nitrides, however, have only been sparsely investigated, as preparative chemistry lacks a systematic access, yet. Herein, we report on the highly condensed boron phosphorus nitride BP3N6, which was synthesized from (PNCl2)(3), NH4N3 and h-BN in a high-pressure high-temperature reaction. By increasing partial pressure of HCl during synthesis using NH4Cl, single-crystals of BP3N6 up to 80 mu m in length were obtained. The unprecedented framework-type structure determined by single-crystal XRD blends structural motifs of both, alpha-P3N5 and c-BN, rendering BP3N6 a double nitride. The compound was further investigated by Rietveld refinement, EDX, temperature-dependent PXRD, FTIR and solid-state NMR spectroscopy. The formation of BP3N6 through use of reactive precursors exemplifies an innovative access to mixed non-metal nitrides.