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- Title
SrH<sub>4</sub>P<sub>6</sub>N<sub>12</sub> and SrP<sub>8</sub>N<sub>14</sub>: Insights into the Condensation Mechanism of Nitridophosphates under High Pressure.
- Authors
Wendl, Sebastian; Schnick, Wolfgang
- Abstract
The (imido)nitridophosphates SrH4P6N12 and SrP8N14 were synthesized as colorless crystals by high‐pressure/high‐temperature reactions using the multianvil technique (5 GPa, ca. 1075 °C). Stoichiometric amounts of Sr(N3)2, P3N5, and amorphous HPN2 were used as starting materials. Whereas the crystal structure of SrH4P6N12 was solved and refined from single‐crystal X‐ray diffraction data and confirmed by Rietveld refinement, the structure of SrP8N14 was determined from powder diffraction data. In order to confirm the structures, 1H and 31P solid‐state NMR spectroscopy and FTIR spectroscopy were carried out. The chemical composition was confirmed with EDX measurements. Both compounds show unprecedented layered network structure types, built up from all‐side vertex‐sharing PN4 tetrahedra which are structurally related. The structural comparison of both compounds gives first insights into the hitherto unknown condensation mechanism of nitridophosphates under high pressure. Big squeeze: The (imido)nitridophosphates SrH4P6N12 and SrP8N14 were synthesized under high‐pressure/high‐temperature conditions at 5 GPa and 1075 °C. The crystal structures were solved from X‐ray diffraction data and confirmed by Rietveld refinement, EDX, FTIR, and solid‐state NMR spectroscopy. The structural relation of both compounds gives first insights into the condensation mechanism of nitridophosphates under high pressure.
- Subjects
CONDENSATION; HIGH pressure (Technology); STOICHIOMETRY; CRYSTAL structure; NUCLEAR magnetic resonance spectroscopy
- Publication
Chemistry - A European Journal, 2018, Vol 24, Issue 59, p15889
- ISSN
0947-6539
- Publication type
Academic Journal
- DOI
10.1002/chem.201803125