VZrSi Pearson W B Zeitschrift fur Kristallographie 171 (1985) 23-39 The Cu2Sb and related structures _database_code_amcsd 0010890 3.695 3.695 7.212 90 90 90 P4/nmm atom x y z V 0 0 0 Zr .5 0 .64 Si .5 0 .255