SELENIUM ATOM non-polymer HETAIN Se 0 2000-08-08 2011-06-04 N REL 78.960 SE N N RCSB SE SE 0 0 N N N 0.000 0.000 0.000 -0.026 0.000 0.000 SE SE 1 [Se] [Se] [SeH2] [SeH2] InChI=1S/H2Se/h1H2 SPVXKVOXSXTJOY-UHFFFAOYSA-N hydrogen selenide RCSB RCSB