Accuracy

cyclopentadienyl, anion     78 Cyclopentadienyl, anion

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    #  Species Formula
    68 Isobutene (Geo)C4H8
    69 IsobuteneC4H8
    70 trans-2-Butene (Geo)C4H8
    71 trans-2-ButeneC4H8
    72 Isobutyl, cationC4H9
    73 IsobutylC4H9
    74 n-Butane (Geo)C4H10
    75 Isobutane (Geo)C4H10
    76 IsobutaneC4H10
    77 n-Butane, transC4H10
    78 Cyclopentadienyl, anion C5H5
    79 Cyclopentadiene (Geo)C5H6
    80 CyclopentadieneC5H6
    81 1,2-Dimethyl cyclopropeneC5H8
    82 1,4-PentadieneC5H8
    83 Bicyclo(2.1.0)-pentaneC5H8
    84 1,cis-3-PentadieneC5H8
    85 CyclopenteneC5H8
    86 1,trans-3-PentadieneC5H8
    87 IsopreneC5H8
    88 Methylene cyclobutaneC5H8


ΔHf: 21.3 kcal/mol,     REF: J. E. Bartmess, R. T. McIver, "Gas Phase Ion Chemistry," Academic Press, New York, 1979, Vol. II.
  
 SYMMETRY CHARGE=-1
Cyclopentadienyl, anion
 H=21.3 HR=BM1979
 
  C     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
  C     1.41144233 +1    0.0000000 +0    0.0000000 +0     1     0     0
  C     1.41144233 +0  108.0000000 +0    0.0000000 +0     2     1     0
  C     1.41144233 +0  108.0000000 +0    0.0000000 +0     3     2     1
  C     1.41144233 +0  108.0000000 +0    0.0000000 +0     4     3     2
  H     1.06080484 +1  126.0000000 +0  180.0000000 +0     1     2     3
  H     1.06080484 +0  126.0000000 +0  180.0000000 +0     2     3     4
  H     1.06080484 +0  126.0000000 +0  180.0000000 +0     3     4     5
  H     1.06080484 +0  126.0000000 +0  180.0000000 +0     4     5     1
  H     1.06080484 +0  126.0000000 +0  180.0000000 +0     5     1     2
 
   2  1    3    4    5
   6  1    7    8    9   10