N. Korber et J. Daniels, DICESIUM ETHYLTRIMETHYLAMMONIUM HEPTAPHOSPHIDE-AMMONIA-(1 2)/, Acta crystallographica. Section C, Crystal structure communications, 52, 1996, pp. 2454-2457
The exchange of one Cs+ cation of Cs3P7 for NEtMe(3)(+) in liquid ammo
nia gives the title compound, (NEtMe(3))Cs2P7.2NH(3). The crystal stru
cture determination shows the existence of corrugated two-dimensionall
y infinite Cs2P7- layers.