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All results from a given calculation for C5H8 (1,3-Pentadiene, (E)-)

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-194.593852
Energy at 298.15K-194.601239
HF Energy-193.957326
Nuclear repulsion energy153.251864
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 MP2/6-31G*
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' 3306 3118 12.36      
2 A' 3214 3031 2.66      
3 A' 3201 3019 48.60      
4 A' 3198 3016 4.75      
5 A' 3187 3006 3.65      
6 A' 3186 3004 2.72      
7 A' 3092 2916 24.89      
8 A' 1754 1654 5.80      
9 A' 1690 1594 2.09      
10 A' 1557 1468 7.41      
11 A' 1495 1410 2.13      
12 A' 1470 1387 3.74      
13 A' 1367 1290 2.28      
14 A' 1350 1273 0.14      
15 A' 1331 1255 1.29      
16 A' 1243 1173 0.75      
17 A' 1136 1072 0.50      
18 A' 1017 959 7.75      
19 A' 936 882 3.80      
20 A' 489 461 0.00      
21 A' 459 433 0.24      
22 A' 199 188 1.34      
23 A" 3165 2985 18.29      
24 A" 1541 1454 6.56      
25 A" 1095 1032 0.07      
26 A" 1044 984 45.24      
27 A" 984 928 5.09      
28 A" 906 855 40.81      
29 A" 823 776 2.75      
30 A" 641 605 1.39      
31 A" 252 238 2.48      
32 A" 203 191 0.00      
33 A" 128 121 0.73      

Unscaled Zero Point Vibrational Energy (zpe) 25330.7 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 23886.8 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 MP2/6-31G*
ABC
0.94703 0.07193 0.06769

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.422 0.775 0.000
C2 -1.413 -0.114 0.000
C3 0.000 0.253 0.000
C4 1.006 -0.642 0.000
C5 2.463 -0.291 0.000
H6 -2.239 1.847 0.000
H7 -3.461 0.460 0.000
H8 -1.634 -1.183 0.000
H9 0.225 1.321 0.000
H10 0.767 -1.707 0.000
H11 2.606 0.793 0.000
H12 2.966 -0.704 0.881
H13 2.966 -0.704 -0.881

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.34492.47753.70894.99951.08741.08542.10982.70284.04055.02745.65655.6565
C21.34491.45962.47553.87952.12792.12671.09102.17802.69934.11954.50574.5057
C32.47751.45961.34602.52202.74853.46672.17511.09212.10422.66103.23903.2390
C43.70892.47551.34601.49844.08924.60032.69512.11261.09182.14892.15042.1504
C54.99953.87952.52201.49845.16505.97064.19292.75802.20931.09381.09581.0958
H61.08742.12792.74854.08925.16501.84823.08902.51964.65434.95785.86335.8633
H71.08542.12673.46674.60035.97061.84822.45603.78514.75016.07526.59066.5906
H82.10981.09102.17512.69514.19293.08902.45603.11882.45764.67764.70884.7088
H92.70282.17801.09212.11262.75802.51963.78513.11883.07632.43833.52033.5203
H104.04052.69932.10421.09182.20934.65434.75012.45763.07633.10362.57342.5734
H115.02744.11952.66102.14891.09384.95786.07524.67762.43833.10361.77431.7743
H125.65654.50573.23902.15041.09585.86336.59064.70883.52032.57341.77431.7627
H135.65654.50573.23902.15041.09585.86336.59064.70883.52032.57341.77431.7627

picture of 1,3-Pentadiene, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 124.060 C1 C2 H8 119.662
C2 C1 H6 121.702 C2 C1 H7 121.744
C2 C3 C4 123.800 C2 C3 H9 116.456
C3 C2 H8 116.277 C3 C4 C5 124.829
C3 C4 H10 118.981 C4 C3 H9 119.744
C4 C5 H11 111.034 C4 C5 H12 111.028
C4 C5 H13 111.028 C5 C4 H10 116.191
H6 C1 H7 116.554 H11 C5 H12 108.258
H11 C5 H13 108.258 H12 C5 H13 107.086
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability