Sr2Bi Pearson W B Zeitschrift fur Kristallographie 171 (1985) 23-39 The Cu2Sb and related structures _database_code_amcsd 0010913 5.01 5.01 17.680 90 90 90 I4/mmm atom x y z Sr1 0 .5 0 Sr2 0 0 .329 Bi 0 0 .138