Please Mind the Gap: Highly Condensed P–N Networks in LiP4N7 and Li3−xP6N11−x(NH)x

Schneider, Stefanie; Klenk, Sebastian; Kloss, Simon D. und Schnick, Wolfgang (2024): Please Mind the Gap: Highly Condensed P–N Networks in LiP4N7 and Li3−xP6N11−x(NH)x. In: Chemistry – A European Journal, Bd. 30, Nr. 3

Abstract

Alkali nitridophosphates AP4N7 and A3P6N11 (A=Na, K, Rb, Cs) have been known for decades. However, their Li homologues have remained elusive. In this work, the highly condensed lithium (imido)nitridophosphates LiP4N7 and Li3−xP6N11−x(NH)x (x=1.66(3)) were synthesized from LiPN2 and P3N5 in the multianvil press at 10 GPa. They constitute the first lithium nitridophosphates with 3D networks exhibiting a degree of condensation larger than 0.5 and high thermal stability. LiP4N7 crystallizes in the orthorhombic space group P212121 with a=4.5846(6) Å, b=8.0094(11) Å, and c=13.252(2) Å (Z=4). Li3−xP6N11−x(NH)x crystallizes in the triclinic space group Purn:x-wiley:09476539:media:chem202303251:chem202303251-math-0001 with Z=2, a=4.6911(11) Å, b=7.024(2) Å, c=12.736(3) Å, α=87.726(11), β=80.279(11), and γ=70.551(12)°. Both compounds are stable against hydrolysis in air.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Chemie und Pharmazie > Department Chemie
• Themengebiete: 500 Naturwissenschaften und Mathematik > 540 Chemie
• ISSN: 0947-6539
• Sprache: Englisch