Accuracy

b2o3   1309 B2O3

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    #  Species Formula
  1299 ArgenineC6H14N4O2
  1300 Ozone (Geo)O3
  1301 OzoneO3
  1302 LiOH.2H2OH5LiO3
  1303 LiOH.2H2O (Geo)H5LiO3
  1304 Li(+)(H2O)3H6LiO3
  1305 Li(+)(H2O)3 (Geo)H6LiO3
  1306 Be3O3Be3O3
  1307 Boric acid, B(OH)3 (Geo)H3BO3
  1308 TrihydroxyboraneH3BO3
  1309 B2O3 B2O3
  1310 Diboron trioxide (Geo)B2O3
  1311 B2O3H2H2B2O3
  1312 B2O3H2 (Geo)H2B2O3
  1313 B3O3H3H3B3O3
  1314 B3O3H3 (Geo)H3B3O3
  1315 1,3,5-TrioxaneC3H6O3
  1316 Methyl hydroxyacetateC3H6O3
  1317 GlycerolC3H8O3
  1318 Trimethoxyborane (Geo)H9BC3O3
  1319 TrimethoxyboraneH9BC3O3


ΔHf: -201.5 kcal/mol,     REF: M. D. Harmony, V. W. Laurie, R. L. Kuczkowsky, R. H. Schwendeman, D. A. Ramsay, F. J. Lovas, W. J. Lafferty, A. G. Maki, J. Phys. Chem. Ref. Data 8, 3 (1979).
  
 PM7
B2O3
 H=-201.5 HR=HLKS1979
  O     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
  B     1.18355573 +1    0.0000000 +0    0.0000000 +0     1     0     0
 XX     1.00000000 +0   90.0000000 +0    0.0000000 +0     2     1     0
  O     1.31994588 +1  179.4176050 +1    0.0000000 +0     2     1     3
  B     1.31993913 +1  174.0199093 +1  179.8323673 +1     4     2     3
  O     1.18355258 +1  179.4297067 +1    0.2255597 +1     5     4     3