PM7 Accuracy Date:Mon Feb 11 04:20:05 2019

silicon dioxide   1902 Silicon dioxide

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    #  Species Formula
  1892 TriethylsilaneC6H16Si
  1893 SiC4(-) (FOGMET) (Geo)C8H13Si
  1894 SiC4(-) (FOGMET)C8H13Si
  1895 TetraethylsilaneC8H20Si
  1896 Silicon nitride (Geo)NSi
  1897 SiC4 (BAWNUI) (Geo)C4H9NSi
  1898 SiC4 (BAWNUI)C4H9NSi
  1899 SiC3N(+) (CASKIQ) (Geo)C8H14NSi
  1900 SiC3N(+) (CASKIQ)C8H14NSi
  1901 Trimethylsilicon hydroxideC3H10OSi
  1902 Silicon dioxide O2Si
  1903 SiH3O (BAHTAF) (Geo)C2H6O2Si
  1904 SiH3O (BAHTAF)C2H6O2Si
  1905 Si(OH)4H4O4Si
  1906 SiO4N (BOJLER) (Geo)C6H13NO4Si
  1907 SiO4N (BOJLER)C6H13NO4Si
  1908 Silicon fluorideFSi
  1909 FluorosilaneH3FSi
  1910 Silyl fluoride (Geo)H3FSi
  1911 CH3-SiH2F (Geo)CH5FSi
  1912 SiMe4F, anionC4H12FSi


ΔHf: -73.0 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
Silicon dioxide
 H=-73.0 HR=JANAF86
 Si     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
  O     1.38325174 +1    0.0000000 +0    0.0000000 +0     1     0     0
  O     1.38318305 +1  179.9741773 +1    0.0000000 +0     1     2     0