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All results from a given calculation for C5H8 (1,3-Butadiene, 2-methyl-)

using model chemistry: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-194.670009
Energy at 298.15K 
HF Energy-193.976152
Nuclear repulsion energy160.265095
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP2/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP2/6-31+G**
ABC
0.28505 0.13893 0.09505

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.589 1.738 0.000
C2 0.000 0.523 0.000
C3 -0.830 -0.685 0.000
C4 -0.364 -1.949 0.000
C5 1.497 0.374 0.000
H6 -1.667 1.838 0.000
H7 -0.007 2.650 0.000
H8 -1.905 -0.525 0.000
H9 0.694 -2.173 0.000
H10 -1.043 -2.790 0.000
H11 1.981 1.349 0.000
H12 1.832 -0.177 0.880
H13 1.832 -0.177 -0.880

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.35032.43553.69452.49281.08271.08202.61824.11654.55102.59923.21073.2107
C21.35031.46632.49931.50432.12362.12662.17432.78433.47382.14592.15022.1502
C32.43551.46631.34742.55662.65903.43541.08632.13002.11553.46982.84982.8498
C43.69452.49931.34742.97644.00594.61322.09801.08141.08104.04682.95592.9559
C52.49281.50432.55662.97643.48682.72803.51832.67024.05741.08881.09141.0914
H61.08272.12362.65904.00593.48681.84842.37584.65504.67033.68074.13354.1335
H71.08202.12663.43544.61322.72801.84843.69954.87365.53792.37523.48583.4858
H82.61822.17431.08632.09803.51832.37583.69953.07702.42264.31393.85493.8549
H94.11652.78432.13001.08142.67024.65504.87363.07701.84403.74972.46022.4602
H104.55103.47382.11551.08104.05744.67035.53792.42261.84405.12623.98383.9838
H112.59922.14593.46984.04681.08883.68072.37524.31393.74975.12621.76841.7684
H123.21072.15022.84982.95591.09144.13353.48583.85492.46023.98381.76841.7604
H133.21072.15022.84982.95591.09144.13353.48583.85492.46023.98381.76841.7604

picture of 1,3-Butadiene, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 119.644 C1 C2 C5 121.583
C2 C1 H6 121.183 C2 C1 H7 121.545
C2 C3 C4 125.269 C2 C3 H8 116.024
C2 C5 H11 110.674 C2 C5 H12 110.858
C2 C5 H13 110.858 C3 C2 C5 118.773
C3 C4 H9 122.184 C3 C4 H10 120.791
C4 C3 H8 118.707 H6 C1 H7 117.272
H9 C4 H10 117.025 H11 C5 H12 108.412
H11 C5 H13 108.412 H12 C5 H13 107.518
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability