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All results from a given calculation for C5H8 (2,3-Pentadiene)

using model chemistry: MP2=FULL/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2=FULL/6-311G*
 hartrees
Energy at 0K-194.736277
Energy at 298.15K-194.743275
HF Energy-193.972169
Nuclear repulsion energy152.157426
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=FULL/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3188 3019 10.09      
2 A 3166 2998 3.92      
3 A 3150 2984 18.45      
4 A 3076 2913 7.88      
5 A 1545 1463 3.98      
6 A 1524 1443 7.77      
7 A 1466 1389 0.00      
8 A 1443 1366 5.10      
9 A 1180 1117 0.08      
10 A 1112 1054 1.28      
11 A 1080 1023 0.05      
12 A 903 855 26.83      
13 A 839 794 0.00      
14 A 536 507 4.41      
15 A 290 275 1.07      
16 A 162 153 0.19      
17 A 135 128 1.73      
18 A 3188 3019 30.79      
19 A 3166 2998 2.61      
20 A 3150 2984 18.53      
21 A 3075 2912 55.23      
22 A 2056 1947 4.11      
23 A 1533 1452 11.89      
24 A 1523 1442 8.38      
25 A 1442 1366 4.41      
26 A 1331 1261 15.48      
27 A 1125 1066 3.02      
28 A 1076 1019 0.78      
29 A 986 934 11.32      
30 A 700 663 21.30      
31 A 571 541 12.53      
32 A 218 206 1.14      
33 A 146 138 1.06      

Unscaled Zero Point Vibrational Energy (zpe) 25038.6 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 23714.1 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/6-311G*
ABC
0.56709 0.07474 0.07221

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.421
C2 0.000 1.314 0.418
C3 0.000 -1.314 0.418
C4 -0.883 2.158 -0.465
C5 0.883 -2.158 -0.465
H6 0.677 1.838 1.093
H7 -0.677 -1.838 1.093
H8 -1.526 2.806 0.136
H9 -0.282 2.803 -1.112
H10 -1.516 1.531 -1.095
H11 1.526 -2.806 0.136
H12 0.282 -2.803 -1.112
H13 1.516 -1.531 -1.095

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.31431.31432.49432.49432.07042.07043.20683.20762.63423.20683.20762.6342
C21.31432.62861.50673.68961.09033.29392.15242.15312.15194.40284.40153.5607
C31.31432.62863.68961.50673.29391.09034.40284.40153.56072.15242.15312.1519
C42.49431.50673.68964.66252.22814.29361.09381.09381.09065.55005.13654.4444
C52.49433.68961.50674.66254.29362.22815.55005.13654.44441.09381.09381.0906
H62.07041.09033.29392.22814.29363.91672.58962.59133.11264.81675.15344.1033
H72.07043.29391.09034.29362.22813.91674.81675.15344.10332.58962.59133.1126
H83.20682.15244.40281.09385.55002.58964.81671.76281.77256.38836.02415.4383
H93.20762.15314.40151.09385.13652.59135.15341.76281.77276.02415.63464.6919
H102.63422.15193.56071.09064.44443.11264.10331.77251.77275.43834.69194.3084
H113.20684.40282.15245.55001.09384.81672.58966.38836.02415.43831.76281.7725
H123.20764.40152.15315.13651.09385.15342.59136.02415.63464.69191.76281.7727
H132.63423.56072.15194.44441.09064.10333.11265.43834.69194.30841.77251.7727

picture of 2,3-Pentadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 124.158 C1 C2 H6 118.565
C1 C3 C5 124.158 C1 C3 H7 118.565
C2 C1 C3 179.655 C2 C4 H8 110.727
C2 C4 H9 110.778 C2 C4 H10 110.877
C3 C5 H11 110.727 C3 C5 H12 110.778
C3 C5 H13 110.877 C4 C2 H6 117.276
C5 C3 H7 117.276 H8 C4 H9 107.378
H8 C4 H10 108.476 H9 C4 H10 108.492
H11 C5 H12 107.378 H11 C5 H13 108.476
H12 C5 H13 108.492
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability