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

using model chemistry: MP3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3/6-31+G**
 hartrees
Energy at 0K-194.684266
Energy at 298.15K 
HF Energy-193.950287
Nuclear repulsion energy157.196805
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 MP3/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP3/6-31+G**
ABC
0.27607 0.12023 0.08797

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 2.247
C2 0.000 0.000 0.934
H3 -0.922 0.000 2.813
H4 0.922 0.000 2.813
C5 0.000 0.000 -0.380
C6 0.000 1.285 -1.176
C7 0.000 -1.285 -1.176
H8 0.000 2.154 -0.523
H9 0.000 -2.154 -0.523
H10 0.879 1.334 -1.820
H11 -0.879 1.334 -1.820
H12 -0.879 -1.334 -1.820
H13 0.879 -1.334 -1.820

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 H8 H9 H10 H11 H12 H13
C11.31301.08161.08162.62773.65633.65633.50883.50884.36984.36984.36984.3698
C21.31302.09282.09281.31472.47062.47062.60052.60053.18403.18403.18403.1840
H31.08162.09281.84363.32394.29094.29094.07634.07635.14684.82154.82155.1468
H41.08162.09281.84363.32394.29094.29094.07634.07634.82155.14685.14684.8215
C52.62771.31473.32393.32391.51141.51142.15882.15882.15042.15042.15042.1504
C63.65632.47064.29094.29091.51142.57061.08693.50081.09121.09122.83672.8367
C73.65632.47064.29094.29091.51142.57063.50081.08692.83672.83671.09121.0912
H83.50882.60054.07634.07632.15881.08693.50084.30821.76921.76923.82373.8237
H93.50882.60054.07634.07632.15883.50081.08694.30823.82373.82371.76921.7692
H104.36983.18405.14684.82152.15041.09122.83671.76923.82371.75863.19482.6672
H114.36983.18404.82155.14682.15041.09122.83671.76923.82371.75862.66723.1948
H124.36983.18404.82155.14682.15042.83671.09123.82371.76923.19482.66721.7586
H134.36983.18405.14684.82152.15042.83671.09123.82371.76922.66723.19481.7586

picture of 1,2-Butadiene, 3-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 180.000 C2 C1 H3 121.544
C2 C1 H4 121.544 C2 C5 C6 121.746
C2 C5 C7 121.746 H3 C1 H4 116.912
C5 C6 H8 111.320 C5 C6 H10 110.388
C5 C6 H11 110.388 C5 C7 H9 111.320
C5 C7 H12 110.388 C5 C7 H13 110.388
C6 C5 C7 116.507 H8 C6 H10 108.631
H8 C6 H11 108.631 H9 C7 H12 108.631
H9 C7 H13 108.631 H10 C6 H11 107.371
H12 C7 H13 107.371
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability