Selenium Cherin P, Unger P Inorganic Chemistry 6 (1967) 1589-1591 The crystal structure of trigonal selenium Locality: synthetic _database_code_amcsd 0012674 4.3662 4.3662 4.9536 90 90 120 P3_121 atom x y z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Se .2254 0 1/3 .0338 .0417 .03775 .02085 0 0