Journalartikel

Jahr der Veröffentlichung: 2017

Seiten: 2185-2191

Zeitschrift: Chemistry - A European Journal

Bandnummer: 23

Heftnummer: 9

ISSN: 0947-6539

eISSN: 1521-3765

DOI Link: https://doi.org/10.1002/chem.201605316

Verlag: Wiley

Abstract: 
Li₁₈P₆N₁₆ was synthesized by reaction of LiPN₂ and Li₇PN₄
at 5.5 GPa and 1273 K employing the multi-anvil technique. It is the
first lithium nitridophosphate obtained by high-pressure synthesis.
Moreover, it is the first example received by reaction of two ternary
lithium nitrides. The combination of high-pressure conditions with a Li₃N flux enabled a complete structure determination using single-crystal X-ray diffraction. The hitherto unknown tricyclic [P₆N₁₆]¹⁸⁻ anion is composed of six vertex-sharing PN₄ tetrahedra forming one vierer- and two additional dreier-rings. To confirm the structure, Rietveld refinement, ⁷Li and ³¹P
solid-state NMR spectroscopy, FTIR spectroscopy and EDX measurements
were carried out. To validate the ionic properties, the migration
pathways of the Li⁺ ions were evaluated, and the conductivity
and its temperature dependence were determined by impedance
spectroscopy measurements. In order to obtain a clearer picture of the
formation mechanism of this compound class, different synthetic
approaches were compared, enabling targeted syntheses of unprecedented
P/N-anion topologies with intriguing properties.

Harvard-Zitierstil: Bertschler, E., Dietrich, C., Janek, J. and Schick, W. (2017) Li18P6N16—A Lithium Nitridophosphate with Unprecedented Tricyclic [P6N16]18− Ions, Chemistry - A European Journal, 23(9), pp. 2185-2191. https://doi.org/10.1002/chem.201605316

APA-Zitierstil: Bertschler, E., Dietrich, C., Janek, J., & Schick, W. (2017). Li18P6N16—A Lithium Nitridophosphate with Unprecedented Tricyclic [P6N16]18− Ions. Chemistry - A European Journal. 23(9), 2185-2191. https://doi.org/10.1002/chem.201605316