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

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at G3B3
 hartrees
Energy at 0K-195.115646
Energy at 298.15K-195.108538
Nuclear repulsion energy 
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 B3LYP/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 3235 3107 19.49      
2 A 3159 3033 1.45      
3 A 3149 3024 10.04      
4 A 3022 2902 24.63      
5 A 1736 1667 0.62      
6 A 1503 1443 5.07      
7 A 1470 1412 0.04      
8 A 1332 1280 0.01      
9 A 1276 1225 0.09      
10 A 1094 1051 1.47      
11 A 1037 996 8.76      
12 A 943 905 35.99      
13 A 918 881 4.34      
14 A 680 653 7.70      
15 A 373 358 0.44      
16 A 300 288 0.09      
17 A 90 86 0.01      
18 A 3235 3107 24.21      
19 A 3158 3033 10.91      
20 A 3149 3024 32.46      
21 A 3061 2939 18.24      
22 A 1722 1654 17.48      
23 A 1472 1414 2.44      
24 A 1345 1292 0.52      
25 A 1319 1267 7.48      
26 A 1179 1133 2.79      
27 A 1039 998 12.73      
28 A 972 933 2.25      
29 A 941 904 33.74      
30 A 906 870 8.56      
31 A 615 590 9.70      
32 A 455 437 2.91      
33 A 105 101 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 24994.5 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 24002.2 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 B3LYP/6-31G*
ABC
0.66552 0.07781 0.07721

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.665
C2 0.000 1.254 -0.178
C3 0.000 -1.254 -0.178
C4 0.962 2.177 -0.177
C5 -0.962 -2.177 -0.177
H6 -0.884 -0.009 1.319
H7 0.884 0.009 1.319
H8 -0.859 1.374 -0.839
H9 0.859 -1.374 -0.839
H10 0.912 3.058 -0.812
H11 -0.912 -3.058 -0.812
H12 1.838 2.089 0.463
H13 -1.838 -2.089 0.463

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.51081.51082.52452.52451.09941.09942.21102.21103.51583.51582.78962.7896
C21.51082.50751.33323.56292.14862.13801.09072.84282.11824.45202.11803.8680
C31.51082.50753.56291.33322.13802.14862.84281.09074.45202.11823.86802.1180
C42.52451.33323.56294.75983.22852.63512.09743.61371.08685.59571.08855.1425
C52.52453.56291.33324.75982.63513.22853.61372.09745.59571.08685.14251.0885
H61.09942.14862.13803.22852.63511.76762.56323.09154.14343.71953.54132.4430
H71.09942.13802.14862.63513.22851.76763.09152.56323.71954.14342.44303.5413
H82.21101.09072.84282.09743.61372.56323.09153.24152.44354.43213.07903.8269
H92.21102.84281.09073.61372.09743.09152.56323.24154.43212.44353.82693.0790
H103.51582.11824.45201.08685.59574.14343.71952.44354.43216.38111.84985.9725
H113.51584.45202.11825.59571.08683.71954.14344.43212.44356.38115.97251.8498
H122.78962.11803.86801.08855.14253.54132.44303.07903.82691.84985.97255.5645
H132.78963.86802.11805.14251.08852.44303.54133.82693.07905.97251.84985.5645

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 125.034 C1 C2 H8 115.468
C1 C3 C5 125.034 C1 C3 H9 115.468
C2 C1 C3 112.211 C2 C1 H6 109.797
C2 C1 H7 108.951 C2 C4 H10 121.823
C2 C4 H12 121.666 C3 C1 H6 108.951
C3 C1 H7 109.797 C3 C5 H11 121.823
C3 C5 H13 121.666 C4 C2 H8 119.491
C5 C3 H9 119.491 H6 C1 H7 106.996
H10 C4 H12 116.510 H11 C5 H13 116.510
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.351 0.207   0.031
2 C -0.041 -0.091   -0.078
3 C -0.041 -0.091   -0.088
4 C -0.340 -0.373   -0.445
5 C -0.340 -0.373   -0.450
6 H 0.148 -0.016   0.044
7 H 0.148 -0.016   0.048
8 H 0.132 0.086   0.117
9 H 0.132 0.086   0.122
10 H 0.140 0.143   0.169
11 H 0.140 0.143   0.172
12 H 0.135 0.147   0.177
13 H 0.135 0.147   0.181


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 0.066 0.066
CHELPG 0.000 0.000 0.097 0.097
AIM        
ESP 0.009 -0.003 0.088 0.088


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 159.099
(<r2>)1/2 12.613