Accuracy

aluminum oxide, dimer   1859 Aluminum oxide, dimer

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    #  Species Formula
  1849 Aluminum tetrafluoride, anionF4Al
  1850 LiAlF4 (Geo)LiF4Al
  1851 Lithium tetrafluoroaluminateLiF4Al
  1852 Al(III)F6(3-) (YAXXAW) (Geo)F6Al
  1853 Al(III)F6(3-) (YAXXAW)F6Al
  1854 Sodium tetrafluoroaluminateF4NaAl
  1855 Dialuminum oxide, cationOAl2
  1856 Al2O (Geo)OAl2
  1857 Dialuminum oxideOAl2
  1858 Al2O2, cationO2Al2
  1859 Aluminum oxide, dimer O2Al2
  1860 Aluminum trifluoride, dimerF6Al2
  1861 Silicon, cationSi
  1862 Silicon, 1D(g) 3s(2)3p(2)Si
  1863 Silicon, 1S(g) 3s(2)3p(2)Si
  1864 Silicon, 3D(u) 3s(1)3p(3)Si
  1865 Silicon, 5S(u) 3s(1)3p(3)Si
  1866 Silicon, atomSi
  1867 SiHHSi
  1868 SiH (Geo)HSi
  1869 Silylene (singlet) (Geo)H2Si


ΔHf: -94.3 kcal/mol,     REF: M. W. Chase, C. A. Davies, J. R. Downey, D. R. Frurip, R. A. McDonald, A. N. Syverud, JANAF Thermochemical Tables, Third Edition, J. Phys. Chem. Ref. Data 14, Suppl. 1 (1985).
  
 PM7
Aluminum oxide, dimer
 H=-94.3 HR=JANAF86
  O     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
 Al     1.59503735 +1    0.0000000 +0    0.0000000 +0     1     0     0
 XX     1.10000000 +0   90.0000000 +0    0.0000000 +0     2     1     0
  O     1.63479028 +1  179.8464765 +1  180.0000000 +0     2     1     3
 Al     1.75107724 +1  144.8656194 +1  179.6345865 +1     4     3     1