Crystal Structure of the Phosphorus Oxynitride P4ON6

SrP3N5O: A Highly Condensed Layer Phosphate Structure Solved from a Nanocrystal by Automated Electron Diffraction Tomography

“…[38] HP 4 N 7 , [39] P 4 N 6 O, [40] Na 3 P 6 N 11 , [41] and K 3 P 6 N 11 . [42] According to the formula…”

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

“…Modell 1 Modell 2* P1±N2 [2] 153,3(3) zweimal 153,5(3) zweimal P1±N3 [3] 164,4(3) zweimal 164,2(3) zweimal P2±N1 [2] 154,9(1) 152(2) P2±N1 [2] 154,9(1) 159(2) P2±N2 [2] 156,8(3) 156,6(3) P2±N3 [3] 172,3(3) 172,3(3) P2±N3 [3] 169,9 [25], jedoch weist Sauerstoff hier ebenfalls einen im Verha È ltnis zu den anderen Atomen stark vergro È ûerten thermischen Auslenkungsparameter auf. Auch hier liegt vermutlich eine statische oder dynamische Unordnung vor.…”

“…Dieses Ergebnis konnte aber bislang nicht zweifelsfrei besta È tigt werden. In allen bislang bekannten Oxosilicaten sind SiO 4 -Tetraeder [25].…”

Novel TaPO5−xN2x/3 oxynitrides

“…under ammonia [21,26,27]. Besides PON [2] and P 4 N 6 O [28], only few crystallized nitridophosphates are reported in literature. The difficulty to keep phosphorus in these compounds under the synthetic conditions required to prepare oxynitride-type materials from oxide precursors may explain the lack of crystallized phases.…”

“…These tetrahedra have been evidenced in the nitrogen-rich P 4 ON 6 oxynitride. P 4 ON 6 is built on the basis of the two tetrahedra: PON 3 and PN 4 [2,35]. Guéguen has shown that PON oxynitride is partly constituted of PON 3 tetrahedra where each nitrogen atom is shared with three phosphorus atoms while non-bridging oxygen atom belongs to only one tetrahedra [36].…”