return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: HF/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-194.036611
Energy at 298.15K-194.044342
HF Energy-194.036611
Nuclear repulsion energy154.487388
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/Def2TZVPP
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' 3367 3052 18.35      
2 A' 3297 2988 21.42      
3 A' 3288 2980 20.87      
4 A' 3279 2972 6.00      
5 A' 3277 2970 13.61      
6 A' 3231 2928 18.41      
7 A' 3153 2858 47.28      
8 A' 1878 1703 21.54      
9 A' 1803 1634 11.35      
10 A' 1608 1458 7.52      
11 A' 1570 1423 3.21      
12 A' 1537 1393 6.07      
13 A' 1444 1309 2.49      
14 A' 1427 1293 0.71      
15 A' 1405 1274 2.72      
16 A' 1289 1169 1.54      
17 A' 1164 1055 0.67      
18 A' 1053 954 6.86      
19 A' 969 878 4.27      
20 A' 510 462 0.04      
21 A' 486 440 0.87      
22 A' 213 193 2.28      
23 A" 3194 2895 30.46      
24 A" 1596 1447 6.22      
25 A" 1173 1063 4.48      
26 A" 1141 1034 36.53      
27 A" 1090 988 34.57      
28 A" 1054 955 38.07      
29 A" 937 850 4.88      
30 A" 705 639 4.05      
31 A" 274 248 2.57      
32 A" 225 204 0.11      
33 A" 139 126 0.99      

Unscaled Zero Point Vibrational Energy (zpe) 26387.3 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 23917.5 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/Def2TZVPP
ABC
0.97601 0.07268 0.06849

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.421 0.694 0.000
C2 -1.407 -0.149 0.000
C3 0.000 0.252 0.000
C4 1.007 -0.600 0.000
C5 2.456 -0.222 0.000
H6 -2.269 1.758 0.000
H7 -3.436 0.348 0.000
H8 -1.602 -1.208 0.000
H9 0.198 1.311 0.000
H10 0.791 -1.656 0.000
H11 2.586 0.852 0.000
H12 2.959 -0.626 0.873
H13 2.959 -0.626 -0.873

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.31902.46093.66444.96231.07481.07282.07062.69093.98025.00925.60805.6080
C21.31901.46312.45593.86362.09362.08981.07642.17012.66504.11634.47784.4778
C32.46091.46311.31952.50152.72373.43782.16791.07702.06592.65453.20773.2077
C43.66442.45591.31951.49724.03734.54392.67972.07501.07782.14482.13812.1381
C54.96233.86362.50151.49725.12385.92014.17652.72892.19701.08221.08511.0851
H61.07482.09362.72374.03735.12381.83013.04022.50824.58554.93915.81255.8125
H71.07282.08983.43784.54395.92011.83012.40543.76024.67906.04336.52806.5280
H82.07061.07642.16792.67974.17653.04022.40543.09632.43554.66744.68064.6806
H92.69092.17011.07702.07502.72892.50823.76023.09633.02552.43103.48343.4834
H103.98022.66502.06591.07782.19704.58554.67902.43553.02553.08392.55372.5537
H115.00924.11632.65452.14481.08224.93916.04334.66742.43103.08391.75661.7566
H125.60804.47783.20772.13811.08515.81256.52804.68063.48342.55371.75661.7452
H135.60804.47783.20772.13811.08515.81256.52804.68063.48342.55371.75661.7452

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 124.311 C1 C2 H8 119.285
C2 C1 H6 121.659 C2 C1 H7 121.448
C2 C3 C4 123.834 C2 C3 H9 116.551
C3 C2 H8 116.404 C3 C4 C5 125.151
C3 C4 H10 118.677 C4 C3 H9 119.615
C4 C5 H11 111.500 C4 C5 H12 110.777
C4 C5 H13 110.777 C5 C4 H10 116.172
H6 C1 H7 116.893 H11 C5 H12 108.290
H11 C5 H13 108.290 H12 C5 H13 107.051
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.144      
2 C -0.080      
3 C -0.077      
4 C -0.026      
5 C -0.136      
6 H 0.053      
7 H 0.071      
8 H 0.061      
9 H 0.043      
10 H 0.049      
11 H 0.060      
12 H 0.062      
13 H 0.062      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.593 -0.201 0.000 0.626
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.099 -0.242 0.000
y -0.242 -29.513 0.000
z 0.000 0.000 -35.625
Traceless
 xyz
x 2.469 -0.242 0.000
y -0.242 3.349 0.000
z 0.000 0.000 -5.819
Polar
3z2-r2-11.637
x2-y2-0.587
xy-0.242
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 14.111 -2.870 0.000
y -2.870 8.751 0.000
z 0.000 0.000 6.029


<r2> (average value of r2) Å2
<r2> 171.790
(<r2>)1/2 13.107