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

using model chemistry: HF/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/3-21G*
 hartrees
Energy at 0K-192.879802
Energy at 298.15K-192.887581
HF Energy-192.879802
Nuclear repulsion energy156.428469
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/3-21G*
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' 3396 3065 23.67      
2 A' 3355 3028 10.99      
3 A' 3333 3008 28.16      
4 A' 3315 2992 9.71      
5 A' 3306 2984 2.47      
6 A' 3286 2966 7.63      
7 A' 3190 2879 28.26      
8 A' 1882 1698 6.75      
9 A' 1813 1637 2.63      
10 A' 1663 1501 8.38      
11 A' 1626 1468 8.81      
12 A' 1584 1429 6.87      
13 A' 1555 1404 1.78      
14 A' 1478 1334 0.79      
15 A' 1430 1291 1.20      
16 A' 1296 1170 3.12      
17 A' 1181 1066 0.34      
18 A' 1024 924 8.45      
19 A' 929 838 1.73      
20 A' 676 611 5.70      
21 A' 434 392 4.42      
22 A' 248 224 0.28      
23 A" 3227 2912 24.67      
24 A" 1661 1499 8.91      
25 A" 1211 1093 0.01      
26 A" 1171 1057 6.85      
27 A" 1150 1038 4.95      
28 A" 1102 995 83.34      
29 A" 902 814 13.20      
30 A" 713 644 43.55      
31 A" 399 360 0.38      
32 A" 129 117 0.01      
33 A" 109 98 0.45      

Unscaled Zero Point Vibrational Energy (zpe) 26886.3 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 24267.6 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 HF/3-21G*
ABC
0.53159 0.08902 0.07733

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.377 0.128 0.000
C2 1.103 -0.226 0.000
C3 0.000 0.741 0.000
C4 -1.295 0.469 0.000
C5 -1.952 -0.890 0.000
H6 2.679 1.159 0.000
H7 3.165 -0.600 0.000
H8 0.850 -1.268 0.000
H9 0.302 1.774 0.000
H10 -1.982 1.297 0.000
H11 -1.238 -1.700 0.000
H12 -2.586 -0.999 0.875
H13 -2.586 -0.999 -0.875

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.32142.45463.68794.44651.07451.07262.06862.64814.51324.05025.16395.1639
C21.32141.46692.49733.12662.09732.09521.07312.15383.44092.76673.87013.8701
C32.45461.46691.32352.54342.71133.43722.18191.07602.05882.73703.23753.2375
C43.68792.49731.32351.50924.03364.58652.76102.06251.07572.17032.14182.1418
C54.44653.12662.54341.50925.06365.12492.82773.48922.18691.08041.08621.0862
H61.07452.09732.71134.03365.06361.82463.03892.45494.66334.84905.75705.7570
H71.07262.09523.43724.58655.12491.82462.40923.71865.48564.53785.83105.8310
H82.06861.07312.18192.76102.82773.03892.40923.09103.82162.13203.55653.5565
H92.64812.15381.07602.06253.48922.45493.71863.09102.33383.79994.09834.0983
H104.51323.44092.05881.07572.18694.66335.48563.82162.33383.08842.53002.5300
H114.05022.76672.73702.17031.08044.84904.53782.13203.79993.08841.75411.7541
H125.16393.87013.23752.14181.08625.75705.83103.55654.09832.53001.75411.7499
H135.16393.87013.23752.14181.08625.75705.83103.55654.09832.53001.75411.7499

picture of 1,3-Pentadiene, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 123.276 C1 C2 H8 119.147
C2 C1 H6 121.839 C2 C1 H7 121.785
C2 C3 C4 126.932 C2 C3 H9 114.903
C3 C2 H8 117.577 C3 C4 C5 127.637
C3 C4 H10 117.844 C4 C3 H9 118.165
C4 C5 H11 112.824 C4 C5 H12 110.153
C4 C5 H13 110.153 C5 C4 H10 114.519
H6 C1 H7 116.376 H11 C5 H12 108.108
H11 C5 H13 108.108 H12 C5 H13 107.310
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.411      
2 C -0.259      
3 C -0.239      
4 C -0.211      
5 C -0.635      
6 H 0.209      
7 H 0.214      
8 H 0.232      
9 H 0.226      
10 H 0.222      
11 H 0.214      
12 H 0.219      
13 H 0.219      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.398 -0.175 0.000 0.435
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.101 0.187 0.000
y 0.187 -29.734 0.000
z 0.000 0.000 -35.792
Traceless
 xyz
x 3.662 0.187 0.000
y 0.187 2.712 0.000
z 0.000 0.000 -6.374
Polar
3z2-r2-12.749
x2-y20.633
xy0.187
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 13.447 1.041 0.000
y 1.041 6.434 0.000
z 0.000 0.000 3.049


<r2> (average value of r2) Å2
<r2> 154.995
(<r2>)1/2 12.450