Litharge Boher P, Garnier P, Gavarri J R, Hewat A W Journal of Solid State Chemistry 57 (1985) 343-350 Monoxyde quadratique PbO alpha(I): Description de la transition structurale ferroelastique Method: X-ray Diffraction T = 77.6 K Locality: synthetic _database_code_amcsd 0013540 3.9645 3.9645 4.9956 90 90 90 P4/nmm atom x y z Biso Pb 0 .5 .2368 .4 O 0 0 0 .6