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All results from a given calculation for C5H8 (1,4-Pentadiene)

using model chemistry: BLYP/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at BLYP/6-31G**
 hartrees
Energy at 0K-195.193324
Energy at 298.15K-195.200714
Nuclear repulsion energy153.841819
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 BLYP/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 3151 3127 21.16      
2 A 3072 3048 1.43      
3 A 3063 3039 11.17      
4 A 2936 2914 25.82      
5 A 1671 1658 0.73      
6 A 1448 1437 4.04      
7 A 1422 1411 0.04      
8 A 1291 1281 0.01      
9 A 1231 1221 0.10      
10 A 1057 1049 1.14      
11 A 1003 995 8.11      
12 A 902 895 29.51      
13 A 886 879 3.85      
14 A 658 653 6.73      
15 A 363 360 0.41      
16 A 292 290 0.06      
17 A 87 87 0.01      
18 A 3151 3127 26.47      
19 A 3071 3047 12.59      
20 A 3062 3039 34.38      
21 A 2976 2953 19.05      
22 A 1655 1642 18.18      
23 A 1422 1411 1.68      
24 A 1300 1290 0.12      
25 A 1273 1263 9.29      
26 A 1137 1128 2.54      
27 A 1004 997 11.84      
28 A 936 929 1.94      
29 A 901 894 27.68      
30 A 876 870 8.64      
31 A 595 591 8.65      
32 A 443 440 3.11      
33 A 103 102 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 24219.1 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 24032.6 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 BLYP/6-31G**
ABC
0.65972 0.07664 0.07607

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.667
C2 0.000 1.263 -0.179
C3 0.000 -1.263 -0.179
C4 0.967 2.195 -0.177
C5 -0.967 -2.195 -0.177
H6 -0.889 -0.010 1.325
H7 0.889 0.010 1.325
H8 -0.864 1.384 -0.844
H9 0.864 -1.384 -0.844
H10 0.914 3.082 -0.812
H11 -0.914 -3.082 -0.812
H12 1.848 2.106 0.467
H13 -1.848 -2.106 0.467

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.52021.52022.54232.54231.10601.10602.22382.22383.53873.53872.80942.8094
C21.52022.52621.34283.59052.16142.15021.09722.86322.13194.48522.13183.8971
C31.52022.52623.59051.34282.15022.16142.86321.09724.48522.13193.89712.1318
C42.54231.34283.59054.79673.24932.65242.11113.64211.09295.63801.09475.1808
C52.54233.59051.34284.79672.65243.24933.64212.11115.63801.09295.18081.0947
H61.10602.16142.15023.24932.65241.77792.57813.10934.16853.74283.56442.4603
H71.10602.15022.16142.65243.24931.77793.10932.57813.74284.16852.46033.5644
H82.22381.09722.86322.11113.64212.57813.10933.26412.45904.46673.09823.8564
H92.22382.86321.09723.64212.11113.10932.57813.26414.46672.45903.85643.0982
H103.53872.13194.48521.09295.63804.16853.74282.45904.46676.42951.86046.0157
H113.53874.48522.13195.63801.09293.74284.16854.46672.45906.42956.01571.8604
H122.80942.13183.89711.09475.18083.56442.46033.09823.85641.86046.01575.6047
H132.80943.89712.13185.18081.09472.46033.56443.85643.09826.01571.86045.6047

picture of 1,4-Pentadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 125.127 C1 C2 H8 115.395
C1 C3 C5 125.127 C1 C3 H9 115.395
C2 C1 C3 112.385 C2 C1 H6 109.770
C2 C1 H7 108.899 C2 C4 H10 121.820
C2 C4 H12 121.661 C3 C1 H6 108.899
C3 C1 H7 109.770 C3 C5 H11 121.820
C3 C5 H13 121.661 C4 C2 H8 119.470
C5 C3 H9 119.470 H6 C1 H7 106.972
H10 C4 H12 116.519 H11 C5 H13 116.519
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.218      
2 C 0.006      
3 C 0.006      
4 C -0.211      
5 C -0.211      
6 H 0.090      
7 H 0.090      
8 H 0.067      
9 H 0.067      
10 H 0.081      
11 H 0.081      
12 H 0.076      
13 H 0.076      


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 0.085 0.085
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x 0.805 0.678 0.000
y 0.678 -0.234 0.000
z 0.000 0.000 -0.570
Traceless
 xyz
x 1.207 0.678 0.000
y 0.678 -0.351 0.000
z 0.000 0.000 -0.856
Polar
3z2-r2-1.711
x2-y21.039
xy0.678
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.082 3.151 0.000
y 3.151 10.501 0.000
z 0.000 0.000 5.620


<r2> (average value of r2) Å2
<r2> 161.155
(<r2>)1/2 12.695