TRANSFORMATION FROM THE AMORPHOUS TO CRYS TALLINE STATE IN SOLID N2O

Transmission electron diffraction studies were carried out on N2O film s grown at temperatures 11-18 K and subsequently slowly warmed up to 4 5 K. The structure data obtained made it possible to identify the repo rted earlier [1] abrupt changes of the reflectivity bands at the intra molecular frequencies of N2O above 40 K as a crystallization transform ation in which the amorphous component (whose very existence is an ano maly, characteristic only of N2O among all the cryocrystals [2]) loose s its stability and undergoes a fast crystallization forming the Pa3 s tructure.