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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-193.986172
Energy at 298.15K-193.993563
Nuclear repulsion energy153.070362
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 3278 2978 17.86      
2 A 3248 2951 7.45      
3 A 3207 2914 38.28      
4 A 3160 2871 9.94      
5 A 1631 1482 3.46      
6 A 1601 1455 5.59      
7 A 1570 1426 0.00      
8 A 1529 1389 1.21      
9 A 1240 1127 0.12      
10 A 1185 1076 3.13      
11 A 1160 1054 1.63      
12 A 995 904 23.08      
13 A 879 798 0.12      
14 A 590 536 7.36      
15 A 323 293 0.85      
16 A 182 166 0.15      
17 A 151 138 1.82      
18 A 3277 2977 36.31      
19 A 3248 2950 22.02      
20 A 3207 2914 38.59      
21 A 3159 2870 102.71      
22 A 2213 2010 26.36      
23 A 1610 1462 7.34      
24 A 1600 1454 5.98      
25 A 1530 1390 8.61      
26 A 1416 1287 30.14      
27 A 1188 1079 3.53      
28 A 1159 1053 2.34      
29 A 1019 925 9.41      
30 A 791 718 15.46      
31 A 623 566 16.85      
32 A 250 227 1.34      
33 A 165 150 1.15      

Unscaled Zero Point Vibrational Energy (zpe) 26190.3 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 23793.9 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 HF/6-311G**
ABC
0.58133 0.07523 0.07271

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 0.411
C2 0.000 1.296 0.412
C3 0.000 -1.296 0.412
C4 -0.876 2.160 -0.460
C5 0.876 -2.160 -0.460
H6 0.673 1.803 1.088
H7 -0.673 -1.803 1.088
H8 -1.508 2.801 0.150
H9 -0.271 2.805 -1.091
H10 -1.512 1.556 -1.095
H11 1.508 -2.801 0.150
H12 0.271 -2.805 -1.091
H13 1.512 -1.556 -1.095

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.29611.29612.48842.48842.04002.04003.19183.19322.64123.19183.19322.6412
C21.29612.59231.50823.67061.07973.24262.14642.14712.15094.37374.37623.5626
C31.29612.59233.67061.50823.24261.07974.37374.37623.56262.14642.14712.1509
C42.48841.50823.67064.66202.21834.25941.08681.08681.08315.53785.13444.4625
C52.48843.67061.50824.66204.25942.21835.53785.13444.46251.08681.08681.0831
H62.04001.07973.24262.21834.25943.84922.57502.57683.09824.77245.11294.0928
H72.04003.24261.07974.25942.21833.84924.77245.11294.09282.57502.57683.0982
H83.19182.14644.37371.08685.53782.57504.77241.75231.76086.36226.01055.4452
H93.19322.14714.37621.08685.13442.57685.11291.75231.76106.01055.63544.7107
H102.64122.15093.56261.08314.46253.09824.09281.76081.76105.44524.71074.3389
H113.19184.37372.14645.53781.08684.77242.57506.36226.01055.44521.75231.7608
H123.19324.37622.14715.13441.08685.11292.57686.01055.63544.71071.75231.7610
H132.64123.56262.15094.46251.08314.09283.09825.44524.71074.33891.76081.7610

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 124.909 C1 C2 H6 118.048
C1 C3 C5 124.909 C1 C3 H7 118.048
C2 C1 C3 179.896 C2 C4 H8 110.560
C2 C4 H9 110.609 C2 C4 H10 111.144
C3 C5 H11 110.560 C3 C5 H12 110.609
C3 C5 H13 111.144 C4 C2 H6 117.043
C5 C3 H7 117.043 H8 C4 H9 107.446
H8 C4 H10 108.478 H9 C4 H10 108.490
H11 C5 H12 107.446 H11 C5 H13 108.478
H12 C5 H13 108.490
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.007      
2 C -0.213      
3 C -0.213      
4 C -0.205      
5 C -0.205      
6 H 0.117      
7 H 0.117      
8 H 0.098      
9 H 0.098      
10 H 0.102      
11 H 0.098      
12 H 0.098      
13 H 0.102      


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 -0.180 0.180
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.551 -0.060 0.000
y -0.060 -28.229 0.000
z 0.000 0.000 -32.702
Traceless
 xyz
x -2.085 -0.060 0.000
y -0.060 4.397 0.000
z 0.000 0.000 -2.312
Polar
3z2-r2-4.624
x2-y2-4.322
xy-0.060
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.137 -0.958 0.000
y -0.958 13.643 0.000
z 0.000 0.000 6.037


<r2> (average value of r2) Å2
<r2> 170.545
(<r2>)1/2 13.059