Accuracy

sic4(-) (fogmet)   1892 SiC4(-) (FOGMET)

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    #  Species Formula
  1882 DimethylsilaneC2H8Si
  1883 EthylsilaneC2H8Si
  1884 TrimethylsilylC3H9Si
  1885 TrimethylsilaneC3H10Si
  1886 DiethylsilaneC4H12Si
  1887 Tetramethylsilane (Geo)C4H12Si
  1888 TetramethylsilaneC4H12Si
  1889 1,1-DimethylsilacyclobutaneC5H12Si
  1890 TriethylsilaneC6H16Si
  1891 SiC4(-) (FOGMET) (Geo)C8H13Si
  1892 SiC4(-) (FOGMET) C8H13Si
  1893 TetraethylsilaneC8H20Si
  1894 Silicon nitride (Geo)NSi
  1895 SiC4 (BAWNUI) (Geo)C4H9NSi
  1896 SiC4 (BAWNUI)C4H9NSi
  1897 SiC3N(+) (CASKIQ) (Geo)C8H14NSi
  1898 SiC3N(+) (CASKIQ)C8H14NSi
  1899 Trimethylsilicon hydroxideC3H10OSi
  1900 Silicon dioxideO2Si
  1901 SiH3O (BAHTAF) (Geo)C2H6O2Si
  1902 SiH3O (BAHTAF)C2H6O2Si


ΔHf: -19.7 kcal/mol,     REF: Estimated from DGauss results of DFT calculations, using the B88-PW91 functional and the DZVP basis set, in CAChe 6.0, Fujitsu Ltd, 2003.
  
 CHARGE=-1 PM7
SiC4(-) (FOGMET)
 H=-19.7 HR=PW91D
 Si     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
  C     1.88936856 +1    0.0000000 +0    0.0000000 +0     1     0     0
  C     1.79211920 +1  111.0025787 +1    0.0000000 +0     1     2     0
  C     1.42005061 +1  126.6551572 +1  128.4467057 +1     3     1     2
  H     1.06578367 +1  127.6227049 +1   -0.6187528 +1     4     3     1
  C     1.40804041 +1  107.9307971 +1 -179.9127879 +1     4     3     5
  H     1.06122079 +1  126.0047210 +1 -179.9850119 +1     6     4     3
  C     1.41373988 +1  108.2355755 +1 -179.9482649 +1     6     4     7
  H     1.06129413 +1  125.7618492 +1  179.9591675 +1     8     6     4
  C     1.40749726 +1  108.2107307 +1 -179.9990676 +1     8     6     9
  H     1.06604909 +1  124.4275138 +1  179.9343884 +1    10     8     6
  C     1.89076280 +1  107.6033514 +1 -121.6726756 +1     1     2     3
  C     1.88650429 +1  108.1991623 +1 -116.6197859 +1     1     2    12
  H     1.09673589 +1  112.1125248 +1  178.1150449 +1     2     1     3
  H     1.10191509 +1  109.7336633 +1 -121.1018771 +1     2     1    14
  H     1.10171893 +1  109.7755122 +1 -117.8282434 +1     2     1    15
  H     1.09652174 +1  112.1636084 +1  -56.7758239 +1    12     1     2
  H     1.10142623 +1  109.7440965 +1 -121.1802680 +1    12     1    17
  H     1.10179627 +1  109.6356860 +1 -117.7739251 +1    12     1    18
  H     1.09719074 +1  112.0621378 +1   55.7686785 +1    13     1     2
  H     1.10194927 +1  109.9125629 +1  121.1113428 +1    13     1    20
  H     1.10239849 +1  109.7591874 +1  118.0006976 +1    13     1    21