Hydrogen Ishmaev S N, Sadikov I P, Chernyshev A A, Vindryevsky B A, Sukhoparov V A, Telepnev A S, Kobelyev G V Zhurnal Eksperimental'noi i Teoreticheskoi Fiziki 84 (1983) 394-403 Neutron structural investigations of solid para-hydrogen at pressures up to 24 kbar Locality: synthetic Sample: at P = 2.40 GPa & T = 25.5 K Note: known as para-hydrogen _database_code_amcsd 0015893 2.850 2.850 4.640 90 90 120 P6_3/mmc atom x y z H 1/3 2/3 .123