Answers are grounded in this paper and cite their sources.
A new structure type, predicted as a possible candidate clathrasil structure, is exhibited by P4N4(NH)4(NH3), which is the first microporous nitridic clathrate (see picture; blue N, pink P, dark gray H). P4N4(NH)4(NH3) was synthesized at 11 GPa and 600 °C, and its crystal structure was determined by powder X-ray diffraction. The presence of intercalated ammonia was verified by mass chromatography and IR spectroscopy.
No takes yet. Share an insight, caveat, or question.
Karau et al. (2006) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: