Cesium amide CsNH2 is compound known since 1905. CsNH2 and its deuterium analogue CsND2 were studied by the X-Ray and neutron diffraction, their molar heat
capacities at temperature between 33K and 348K were determined [i] Cesium amide may be applicable as precursor for the growth of Cs-containing thin films by ALD or MOCVD.
[i] M. Nagib, E. von Osten, H. Jacobs, Atomkernenergie, Kerntechnik. 1983, Vol 43, Num 1, pp 47-54 , « A X-ray and neutron diffraction study and the determination of molar heat capacities of CsNH2 and CsND2 at temperatures between 348 and 33 K »
Cesium amide forms adduct with ammonia CsNH2·NH3, its structure was determined: it contains a distorted hexagonal close packed arrangement of Cs ions with NH2 ions on trigonal bipyramidal interstitial positions and NH3 molecules on octahedral sites; Cs ions are surrounded by 10 crystallographically independent N atoms; NH3 groups form hydrogen bonds to N atoms of NH2 groups.
However, CsNH2·NH3 is stable only till ca. 17°C so unlikely to be applicable as Cs precursor.