UAsS Pearson W B Zeitschrift fur Kristallographie 171 (1985) 23-39 The Cu2Sb and related structures _database_code_amcsd 0010906 3.874 3.874 8.158 90 90 90 P4/nmm atom x y z As 0 0 0 S .5 0 .6334 U .5 0 .2888