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161 Spiropentane

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  #           Species Formula
  151 CyclopentadieneC5H6
  152 1,2-Dimethyl cyclopropeneC5H8
  153 1,4-PentadieneC5H8
  154 1,cis-3-PentadieneC5H8
  155 1,trans-3-PentadieneC5H8
  156 Bicyclo(2.1.0)-pentaneC5H8
  157 CyclopenteneC5H8
  158 IsopreneC5H8
  159 Methylene cyclobutaneC5H8
  160 Spiropentane (Geo)C5H8
  161 Spiropentane C5H8
  162 Cyclopentyl, cationC5H9
  163 2-Methyl-2-buteneC5H10
  164 cis-2-PenteneC5H10
  165 cis-DimethylcyclopropaneC5H10
  166 CyclopentaneC5H10
  167 trans-2-PenteneC5H10
  168 Neopentyl, anionC5H11
  169 n-PentaneC5H12
  170 Neopentane (Geo)C5H12
  171 NeopentaneC5H12



DHf: 44.3 kcal/mol,     REF: J. O. Cox, G. Pilcher, "Thermochemistry of Organic and Organometallic Compounds," Academic Press, New York, N.Y., 1970.

  
 SYMMETRY
Spiropentane
 H=44.3 HR=C&P1970
  C         0.00000000 +0    0.0000000 +0    0.0000000 +0                      0.0000
 XX         1.28336074 +1    0.0000000 +0    0.0000000 +0    1    0    0
  C         0.76393584 +1   90.0000000 +0    0.0000000 +0    2    1    0       0.0000
 XX         1.00000000 +0   90.0000000 +0  180.0000000 +0    1    2    3
  C         0.76393584 +0   90.0000000 +0    0.0000000 +0    2    1    4       0.0000
 XX         1.28336074 +0   90.0000000 +0  180.0000000 +0    1    4    2
  C         0.76393584 +0   90.0000000 +0   90.0000000 +0    6    1    4       0.0000
  C         0.76393584 +0   90.0000000 +0  -90.0000000 +0    6    1    4       0.0000
 XX         0.61706619 +1  149.9903941 +1  180.0000000 +0    3    2    1
 XX         0.61706619 +0  149.9903941 +0  180.0000000 +0    5    2    1
 XX         0.61706619 +0  149.9903941 +0  180.0000000 +0    7    6    1
 XX         0.61706619 +0  149.9903941 +0  180.0000000 +0    8    6    1
  H         0.89546893 +1   90.0000000 +0   90.0000000 +0    9    3    2       0.0000
  H         0.89546893 +0   90.0000000 +0  -90.0000000 +0    9    3    2       0.0000
  H         0.89546893 +0   90.0000000 +0  -90.0000000 +0   10    5    2       0.0000
  H         0.89546893 +0   90.0000000 +0   90.0000000 +0   10    5    2       0.0000
  H         0.89546893 +0   90.0000000 +0   90.0000000 +0   11    7    6       0.0000
  H         0.89546893 +0   90.0000000 +0  -90.0000000 +0   11    7    6       0.0000
  H         0.89546893 +0   90.0000000 +0  -90.0000000 +0   12    8    6       0.0000
  H         0.89546893 +0   90.0000000 +0   90.0000000 +0   12    8    6       0.0000