Ba2As Pearson W B Zeitschrift fur Kristallographie 171 (1985) 23-39 The Cu2Sb and related structures _database_code_amcsd 0010910 5.13 5.13 17.35999 90 90 90 I4/mmm atom x y z Ba1 0 .5 0 Ba2 0 0 .325 As 0 0 .136