Accuracy

seo3r   4061 Selenium trioxide (Geo)

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    #  Species Formula
  4051 Tetrahydroselenophene (Geo)C4H8Se
  4052 TetrahydroselenopheneC4H8Se
  4053 DiethylseleniumC4H10Se
  4054 SeH-NH2H3NSe
  4055 SeH-NH2 (Geo)H3NSe
  4056 Isoselenocyanic acid (Se=C=N-H) (Geo)HCNSe
  4057 Selenium oxide (Geo)OSe
  4058 Carbon oxyselenide (Geo)COSe
  4059 Selenium dioxideO2Se
  4060 Selenium dioxide (Geo)O2Se
  4061 Selenium trioxide (Geo) O3Se
  4062 Selenic acid (Se(OH)6) (Geo)H6O6Se
  4063 Selenium fluorideFSe
  4064 Selenocarbonyl difluoride (Geo)CF2Se
  4065 Selenyl fluoride (Geo)OF2Se
  4066 Selenoyl fluoride (SeO2F2) (Geo)O2F2Se
  4067 Selenium tetrafluoride (Geo)F4Se
  4068 Selenium tetrafluorideF4Se
  4069 Selenium hexafluoride (Geo)F6Se
  4070 Selenium hexafluorideF6Se
  4071 SeF6(=) (Geo)F6Se


REF: J. H. Callomon, E. Hirota, T. Iijima, K. Kuchitsu, W. J. Lafferty, "Structure Data on Free Polyatomic Molecules," Landolt-Bornstein, New Series, Group II, Vol. 15, Springer, Berlin (1977).
  
 SYMMETRY PM7
Selenium trioxide
 GR=CHIK1986 <Se-O> GWT=0.20
 
  O     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
 Se     1.68780000 +1    0.0000000 +0    0.0000000 +0     1     0     0
  O     1.68780000 +0  120.0000000 +1    0.0000000 +0     2     1     0
  O     1.68780000 +1  120.0000000 +0  180.0000000 +0     2     1     3
 
   2  1    3    4