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

using model chemistry: QCISD/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 QCISD/6-31G*
 hartrees
Energy at 0K-194.649308
Energy at 298.15K-194.642026
HF Energy-193.957178
Nuclear repulsion energy152.890051
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 QCISD/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 3259 3103 17.95      
2 A 3177 3026 4.62      
3 A 3166 3015 43.85      
4 A 3158 3008 17.67      
5 A 3155 3005 1.35      
6 A 3138 2988 9.00      
7 A 3054 2908 31.55      
8 A 1776 1691 6.41      
9 A 1704 1623 3.12      
10 A 1544 1471 6.30      
11 A 1489 1418 1.68      
12 A 1466 1396 3.84      
13 A 1366 1301 2.11      
14 A 1349 1285 0.16      
15 A 1331 1267 1.70      
16 A 1235 1176 0.70      
17 A 1127 1073 0.33      
18 A 1012 963 6.34      
19 A 930 886 2.88      
20 A 487 464 0.01      
21 A 458 436 0.25      
22 A 199 190 1.22      
23 A 3114 2966 24.75      
24 A 1529 1456 5.93      
25 A 1093 1041 0.31      
26 A 1035 986 42.70      
27 A 984 937 5.20      
28 A 915 872 38.84      
29 A 829 790 2.82      
30 A 639 608 1.60      
31 A 250 238 2.37      
32 A 198 189 0.00      
33 A 126 120 0.56      

Unscaled Zero Point Vibrational Energy (zpe) 25146.1 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 23946.6 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 QCISD/6-31G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.429 0.759 0.000
C2 -1.417 -0.124 0.000
C3 0.000 0.252 0.000
C4 1.010 -0.635 0.000
C5 2.469 -0.275 0.000
H6 -2.250 1.834 0.000
H7 -3.468 0.439 0.000
H8 -1.636 -1.194 0.000
H9 0.222 1.323 0.000
H10 0.774 -1.703 0.000
H11 2.608 0.813 0.000
H12 2.977 -0.686 0.884
H13 2.977 -0.686 -0.884

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.34352.48123.71055.00551.08951.08752.10832.71044.03995.03685.66475.6647
C21.34351.46562.47953.88812.12832.12761.09252.18612.70034.13194.51644.5164
C32.48121.46561.34412.52422.75093.47332.18361.09352.10272.66743.24363.2436
C43.71052.47951.34411.50284.08974.60502.70412.11031.09352.15662.15712.1571
C55.00553.88812.52421.50285.16895.97964.20642.75652.21621.09671.09881.0988
H61.08952.12832.75094.08975.16891.85163.09002.52514.65384.96435.86965.8696
H71.08752.12763.47334.60505.97961.85162.45473.79484.75246.08746.60186.6018
H82.10831.09252.18362.70414.20643.09002.45473.12862.46314.69454.72424.7242
H92.71042.18611.09352.11032.75652.52513.79483.12863.07562.43923.52133.5213
H104.03992.70032.10271.09352.21624.65384.75242.46313.07563.11332.58252.5825
H115.03684.13192.66742.15661.09674.96436.08744.69452.43923.11331.77811.7781
H125.66474.51643.24362.15711.09885.86966.60184.72423.52132.58251.77811.7671
H135.66474.51643.24362.15711.09885.86966.60184.72423.52132.58251.77811.7671

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 124.025 C1 C2 H8 119.518
C2 C1 H6 121.684 C2 C1 H7 121.782
C2 C3 C4 123.826 C2 C3 H9 116.598
C3 C2 H8 116.457 C3 C4 C5 124.821
C3 C4 H10 118.859 C4 C3 H9 119.575
C4 C5 H11 111.158 C4 C5 H12 111.069
C4 C5 H13 111.069 C5 C4 H10 116.320
H6 C1 H7 116.534 H11 C5 H12 108.166
H11 C5 H13 108.166 H12 C5 H13 107.051
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability