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

using model chemistry: HF/CEP-31G

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/CEP-31G
 hartrees
Energy at 0K-31.971261
Energy at 298.15K-31.979004
Nuclear repulsion energy82.976279
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/CEP-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 3431 3093 58.26      
2 A 3360 3029 29.51      
3 A 3348 3018 32.23      
4 A 3337 3008 57.91      
5 A 3333 3004 8.10      
6 A 3293 2969 35.23      
7 A 3199 2883 81.88      
8 A 1881 1695 18.43      
9 A 1795 1618 13.00      
10 A 1632 1471 10.33      
11 A 1584 1428 2.74      
12 A 1565 1411 5.67      
13 A 1461 1317 3.01      
14 A 1446 1303 1.10      
15 A 1423 1283 0.94      
16 A 1312 1183 1.84      
17 A 1189 1072 1.61      
18 A 1070 964 9.00      
19 A 983 886 3.11      
20 A 509 458 0.03      
21 A 485 437 0.72      
22 A 211 190 1.59      
23 A 3262 2941 67.75      
24 A 1620 1460 11.95      
25 A 1198 1080 4.54      
26 A 1169 1054 60.35      
27 A 1134 1022 43.53      
28 A 1081 974 66.10      
29 A 972 876 8.58      
30 A 720 649 4.43      
31 A 274 247 4.85      
32 A 215 194 0.13      
33 A 144 130 1.07      

Unscaled Zero Point Vibrational Energy (zpe) 26817.3 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 24173.1 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/CEP-31G
ABC
0.94171 0.07038 0.06629

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.385 1.011 0.000
C2 -1.464 0.018 0.000
C3 0.000 0.252 0.000
C4 0.921 -0.740 0.000
C5 2.424 -0.524 0.000
H6 -2.096 2.053 0.000
H7 -3.444 0.799 0.000
H8 -1.789 -1.013 0.000
H9 0.323 1.285 0.000
H10 0.582 -1.769 0.000
H11 2.671 0.536 0.000
H12 2.883 -0.981 0.879
H13 2.883 -0.981 -0.879

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.35442.50273.74155.04801.08091.07982.11052.72184.06625.07795.70045.7004
C21.35441.48262.50303.92562.13092.12791.08142.19062.71684.16724.54634.5463
C32.50271.48261.35432.54532.76353.48662.19151.08182.10362.68593.25683.2568
C43.74152.50301.35431.51814.11204.62832.72412.11151.08312.16572.16322.1632
C55.04803.92562.54531.51815.20346.01484.24132.77222.22291.08871.09191.0919
H61.08092.13092.76354.11205.20341.84063.08172.53864.66725.00275.89715.8971
H71.07982.12793.48664.62836.01481.84062.45393.79794.77516.12006.63086.6308
H82.11051.08142.19152.72414.24133.08172.45393.12132.48884.72144.75424.7542
H92.72182.19061.08182.11152.77222.53863.79793.12133.06472.46413.53003.5300
H104.06622.71682.10361.08312.22294.66724.77512.48883.06473.11062.58582.5858
H115.07794.16722.68592.16571.08875.00276.12004.72142.46413.11061.76651.7665
H125.70044.54633.25682.16321.09195.89716.63084.75423.53002.58581.76651.7578
H135.70044.54633.25682.16321.09195.89716.63084.75423.53002.58581.76651.7578

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 123.742 C1 C2 H8 119.678
C2 C1 H6 121.691 C2 C1 H7 121.487
C2 C3 C4 123.775 C2 C3 H9 116.475
C3 C2 H8 116.580 C3 C4 C5 124.681
C3 C4 H10 118.895 C4 C3 H9 119.750
C4 C5 H11 111.289 C4 C5 H12 110.890
C4 C5 H13 110.890 C5 C4 H10 116.424
H6 C1 H7 116.823 H11 C5 H12 108.211
H11 C5 H13 108.211 H12 C5 H13 107.201
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.611      
2 C 0.029      
3 C -0.194      
4 C -0.289      
5 C -0.361      
6 H 0.171      
7 H 0.168      
8 H 0.240      
9 H 0.266      
10 H 0.229      
11 H 0.131      
12 H 0.110      
13 H 0.110      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.600 -0.322 0.000 0.681
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.068 -0.070 0.000
y -0.070 -29.198 0.000
z 0.000 0.000 -36.012
Traceless
 xyz
x 2.537 -0.070 0.000
y -0.070 3.842 0.000
z 0.000 0.000 -6.379
Polar
3z2-r2-12.757
x2-y2-0.870
xy-0.070
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.553 -4.140 0.000
y -4.140 8.962 0.000
z 0.000 0.000 4.334


<r2> (average value of r2) Å2
<r2> 143.768
(<r2>)1/2 11.990