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

using model chemistry: HF/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 HF/6-311G*
 hartrees
Energy at 0K-193.973529
Energy at 298.15K-193.980899
Nuclear repulsion energy153.082764
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 HF/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 3293 2978 22.41      
2 A 3263 2951 8.55      
3 A 3222 2914 44.10      
4 A 3178 2874 11.16      
5 A 1646 1488 3.54      
6 A 1619 1464 5.67      
7 A 1581 1430 0.00      
8 A 1543 1396 1.30      
9 A 1245 1126 0.09      
10 A 1192 1078 2.77      
11 A 1167 1055 1.67      
12 A 995 900 23.35      
13 A 881 796 0.09      
14 A 590 533 7.18      
15 A 322 291 0.82      
16 A 181 164 0.21      
17 A 150 136 1.73      
18 A 3292 2977 48.29      
19 A 3262 2950 24.47      
20 A 3222 2914 44.43      
21 A 3176 2872 115.03      
22 A 2215 2003 24.34      
23 A 1627 1472 7.17      
24 A 1618 1463 6.09      
25 A 1545 1397 8.99      
26 A 1427 1291 31.34      
27 A 1195 1080 3.42      
28 A 1166 1054 2.49      
29 A 1022 924 8.17      
30 A 787 712 15.89      
31 A 623 563 16.46      
32 A 249 225 1.39      
33 A 163 148 1.04      

Unscaled Zero Point Vibrational Energy (zpe) 26326.8 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 23810.0 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 HF/6-311G*
ABC
0.58165 0.07521 0.07270

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.412
C2 0.000 1.296 0.412
C3 0.000 -1.296 0.412
C4 -0.876 2.160 -0.459
C5 0.876 -2.160 -0.459
H6 0.673 1.803 1.087
H7 -0.673 -1.803 1.087
H8 -1.509 2.801 0.147
H9 -0.272 2.807 -1.090
H10 -1.511 1.560 -1.097
H11 1.509 -2.801 0.147
H12 0.272 -2.807 -1.090
H13 1.511 -1.560 -1.097

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.29611.29612.48852.48852.03982.03983.19243.19482.64453.19243.19482.6445
C21.29612.59231.50783.67061.07953.24272.14722.14772.15214.37404.37763.5662
C31.29612.59233.67061.50783.24271.07954.37404.37763.56622.14722.14772.1521
C42.48851.50783.67064.66202.21744.25941.08591.08591.08235.53775.13674.4657
C52.48853.67061.50784.66204.25942.21745.53775.13674.46571.08591.08591.0823
H62.03981.07953.24272.21744.25943.84992.57642.57663.09844.77295.11384.0965
H72.03983.24271.07954.25942.21743.84994.77295.11384.09652.57642.57663.0984
H83.19242.14724.37401.08595.53772.57644.77291.74911.75766.36286.01235.4482
H93.19482.14774.37761.08595.13672.57665.11381.74911.75786.01235.63954.7166
H102.64452.15213.56621.08234.46573.09844.09651.75761.75785.44824.71664.3436
H113.19244.37402.14725.53771.08594.77292.57646.36286.01235.44821.74911.7576
H123.19484.37762.14775.13671.08595.11382.57666.01235.63954.71661.74911.7578
H132.64453.56622.15214.46571.08234.09653.09845.44824.71664.34361.75761.7578

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 124.955 C1 C2 H6 118.040
C1 C3 C5 124.955 C1 C3 H7 118.040
C2 C1 C3 179.966 C2 C4 H8 110.706
C2 C4 H9 110.746 C2 C4 H10 111.324
C3 C5 H11 110.706 C3 C5 H12 110.746
C3 C5 H13 111.324 C4 C2 H6 117.004
C5 C3 H7 117.004 H8 C4 H9 107.284
H8 C4 H10 108.315 H9 C4 H10 108.329
H11 C5 H12 107.284 H11 C5 H13 108.315
H12 C5 H13 108.329
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.096 -0.093   -0.263
2 C -0.303 -0.159   -0.014
3 C -0.303 -0.159   -0.004
4 C -0.623 0.144   -0.123
5 C -0.623 0.144   -0.149
6 H 0.224 0.104   0.103
7 H 0.224 0.104   0.101
8 H 0.216 -0.021   0.040
9 H 0.215 -0.011   0.050
10 H 0.224 -0.011   0.075
11 H 0.216 -0.021   0.048
12 H 0.215 -0.011   0.056
13 H 0.224 -0.011   0.081


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.165 0.165
CHELPG        
AIM        
ESP 0.005 0.008 -0.200 0.200


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.654 0.012 0.000
y 0.012 -28.381 0.000
z 0.000 0.000 -32.797
Traceless
 xyz
x -2.065 0.012 0.000
y 0.012 4.344 0.000
z 0.000 0.000 -2.279
Polar
3z2-r2-4.558
x2-y2-4.273
xy0.012
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.014 -0.928 0.000
y -0.928 13.525 0.000
z 0.000 0.000 5.916


<r2> (average value of r2) Å2
<r2> 170.666
(<r2>)1/2 13.064