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

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

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/6-31+G**
 hartrees
Energy at 0K-194.673663
Energy at 298.15K-194.680647
HF Energy-193.954957
Nuclear repulsion energy152.231790
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/6-31+G**
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 3232 3035 10.60      
2 A 3214 3019 1.95      
3 A 3196 3002 16.28      
4 A 3114 2925 9.17      
5 A 1553 1459 4.36      
6 A 1526 1433 5.59      
7 A 1476 1387 0.35      
8 A 1450 1362 2.05      
9 A 1188 1116 0.04      
10 A 1118 1050 1.79      
11 A 1080 1014 0.65      
12 A 910 854 27.32      
13 A 844 793 0.00      
14 A 534 502 6.12      
15 A 291 273 0.95      
16 A 156 146 0.36      
17 A 135 127 2.21      
18 A 3232 3036 31.75      
19 A 3214 3019 1.11      
20 A 3196 3002 16.35      
21 A 3113 2924 60.35      
22 A 2063 1937 6.11      
23 A 1542 1448 9.81      
24 A 1525 1433 6.06      
25 A 1449 1361 4.82      
26 A 1340 1259 18.47      
27 A 1133 1064 2.14      
28 A 1077 1011 2.04      
29 A 990 930 9.90      
30 A 707 664 21.10      
31 A 570 535 14.14      
32 A 212 199 1.78      
33 A 143 134 1.24      

Unscaled Zero Point Vibrational Energy (zpe) 25259.7 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 23723.9 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/6-31+G**
ABC
0.57183 0.07457 0.07209

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.417
C2 0.000 1.316 0.416
C3 0.000 -1.316 0.416
C4 -0.881 2.162 -0.463
C5 0.881 -2.162 -0.463
H6 0.675 1.834 1.091
H7 -0.675 -1.834 1.091
H8 -1.521 2.806 0.139
H9 -0.280 2.806 -1.106
H10 -1.511 1.538 -1.091
H11 1.521 -2.806 0.139
H12 0.280 -2.806 -1.106
H13 1.511 -1.538 -1.091

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.31651.31652.49512.49512.06712.06713.20423.20492.63093.20423.20492.6309
C21.31652.63291.50463.69471.08573.29162.14732.14812.14574.40324.40343.5638
C31.31652.63293.69471.50463.29161.08574.40324.40343.56382.14732.14812.1457
C42.49511.50463.69474.66972.22344.29251.09011.09011.08745.55175.14264.4504
C52.49513.69471.50464.66974.29252.22345.55175.14264.45041.09011.09011.0874
H62.06711.08573.29162.22344.29253.90812.58382.58563.10314.81155.14874.1019
H72.06713.29161.08574.29252.22343.90814.81155.14874.10192.58382.58563.1031
H83.20422.14734.40321.09015.55172.58384.81151.75851.76756.38446.02465.4389
H93.20492.14814.40341.09015.14262.58565.14871.75851.76766.02465.63984.6986
H102.63092.14573.56381.08744.45043.10314.10191.76751.76765.43894.69864.3120
H113.20424.40322.14735.55171.09014.81152.58386.38446.02465.43891.75851.7675
H123.20494.40342.14815.14261.09015.14872.58566.02465.63984.69861.75851.7676
H132.63093.56382.14574.45041.08744.10193.10315.43894.69864.31201.76751.7676

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 124.231 C1 C2 H6 118.429
C1 C3 C5 124.231 C1 C3 H7 118.429
C2 C1 C3 179.941 C2 C4 H8 110.681
C2 C4 H9 110.750 C2 C4 H10 110.720
C3 C5 H11 110.681 C3 C5 H12 110.750
C3 C5 H13 110.720 C4 C2 H6 117.340
C5 C3 H7 117.340 H8 C4 H9 107.530
H8 C4 H10 108.523 H9 C4 H10 108.536
H11 C5 H12 107.530 H11 C5 H13 108.523
H12 C5 H13 108.536
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability