Department of Chemistry, Ludwig-Maximilians-University Munich, Butenandtstraße 5-13, 81377, Munich, Germany.
Department of Physics and Engineering Physics, University of Saskatchewan, 116 Science Place, Saskatoon, Saskatchewan, S7 N 5E2, Canada.
Angew Chem Int Ed Engl. 2023 Jan 16;62(3):e202215393. doi: 10.1002/anie.202215393. Epub 2022 Dec 8.
Owing to their widespread properties, nitridophosphates are of high interest in current research. Explorative high-pressure high-temperature investigations yielded various compounds with stoichiometry MP N (M=Be, Ca, Sr, Ba, Mn, Cd), which are discussed as ultra-hard or luminescent materials, when doped with Eu . Herein, we report the first germanium nitridophosphate, GeP N , synthesized from Ge N and P N at 6 GPa and 800 °C. The structure was determined by single-crystal X-ray diffraction and further characterized by energy-dispersive X-ray spectroscopy, density functional theory calculations, IR and NMR spectroscopy. The highly condensed network of PN -tetrahedra shows a strong structural divergence to other MP N compounds, which is attributed to the stereochemical influence of the lone pair of Ge . Thus, the formal exchange of alkaline earth cations with Ge may open access to various compounds with literature-known stoichiometry, however, new structures and properties.
由于其广泛的特性，氮磷酸盐在当前的研究中引起了极大的关注。探索性的高压高温研究得到了具有化学计量比 MP N（M=Be、Ca、Sr、Ba、Mn、Cd）的各种化合物，当掺杂 Eu 时，这些化合物被认为是超硬或发光材料。在此，我们报道了第一个锗氮磷酸盐 GeP N，它是由 Ge N 和 P N 在 6 GPa 和 800°C 下合成的。结构通过单晶 X 射线衍射确定，并通过能量色散 X 射线光谱、密度泛函理论计算、IR 和 NMR 光谱进一步表征。PN -四面体的高度凝聚网络显示出与其他 MP N 化合物强烈的结构差异，这归因于 Ge 的孤对电子的立体化学影响。因此，用 Ge 替代碱土金属阳离子可能会获得具有文献已知化学计量比的各种化合物，但也会有新的结构和性质。
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