Synthese, Kristallstruktur und Eigenschaften von Phosphor(V)‐nitridimid HP ₄ N ₇

Li12P3N9 with Non‐Condensed [P3N9]12−‐Rings and its High‐Pressure Polymorph Li4PN3 with Infinite Chains of PN4‐Tetrahedra

“…2.88, [26] b-P 4 N 6 (NH): 3.037, [5] g-P 4 N 6 (NH): 3.613 gcm À3 ). [27] As maller differencei so bserved in PN(NH) with 2% (b-cristobalite-type PN(NH): 2.66, [23] b-PN(NH): 2.71 gcm À3 ) [25] and ah igher in P 3 N 5 with 32 %( a-P 3 N 5 :2 .77, g-P 3 N 5 :3.65 gcm À3 ).…”

“…[22] All of these lithium nitridophosphates, except Li 18 P 6 N 16 ,c an be synthesized from Li 3 Na nd P 3 N 5 below 850 8C in Ta or Wc rucibles. [14] Recently,anumber of intriguing P/N-networks,with high degrees of condensation, were synthesized by this high-pressure/ high-temperature approach, for example, b-cristobalite-type PN(NH), [23,24] and b-PN(NH); [25] a-P 4 N 6 (NH), [6,26] b-P 4 N 6 (NH), [5] and g-P 4 N 6 (NH). [1] To preventd ecomposition, high-pressure/high-temperature synthesis emerged as ap owerful tool to obtain new lithium nitridophosphates with the Li 3 Ns elf-fluxm ethod.…”

Phosphor(V)-nitrid α-P3N5: Synthese ausgehend von Tetraaminophosphoniumiodid und Kristallstrukturaufklärung mittels Synchrotron-Pulver-Röntgenbeugung

“…Dabei wurden die fu È r HP 4 N 7 ermittelten Durchschnittswerte [20] von P±N [2] = 155 pm und P±N [3] = 170 pm benutzt. Die Soft-Constraints konnten auch am Ende der Rietveld-Verfeinerung nicht vollsta È ndig aufgegeben werden.…”

Rare‐Earth‐Metal Nitridophosphates through High‐Pressure Metathesis

“…Nitridophosphates are believed to be one of the largest uncharted compound classes despite their proven structural versatility,w hich rivals even that of silicates,a nd their intriguing properties.O wing to their framework structure of PN 4 tetrahedra, nitridophosphates are closely related to silicates but they offer abroader structural diversity because of the possibility of triply bridging N [3] atoms. [1][2][3][4] To date, nitridophosphates of the first and second main groups have been thoroughly investigated.…”