As2Se3 Kirkinskii V A, Yakushev V G Doklady Chemistry 182 (1968) 896-898 A new polymorphic modification of arsenic selenide obtained at high presssures Locality: Synthetic _database_code_amcsd 0020525 13.37 3.73 9.31 90 95 90 C2/m atom x y z As1 .205 0 .145 As2 .115 .5 .445 Se1 .032 0 .282 Se2 .28 .5 .337 Se3 .375 0 .034