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All results from a given calculation for C5H8 (2,3-Pentadiene)

using model chemistry: PBEPBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-195.013060
Energy at 298.15K-195.019991
Nuclear repulsion energy151.196898
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 PBEPBE/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 3083 3039 13.77      
2 A 3053 3009 7.94      
3 A 3027 2984 21.60      
4 A 2973 2930 7.57      
5 A 1493 1472 2.76      
6 A 1465 1444 5.68      
7 A 1422 1402 0.18      
8 A 1379 1360 1.47      
9 A 1150 1134 0.14      
10 A 1070 1055 0.97      
11 A 1028 1014 0.09      
12 A 872 860 20.94      
13 A 814 803 0.02      
14 A 533 525 2.21      
15 A 284 280 1.41      
16 A 178 176 0.01      
17 A 136 134 1.54      
18 A 3083 3039 30.65      
19 A 3051 3008 9.63      
20 A 3027 2984 21.61      
21 A 2972 2929 74.57      
22 A 2029 2000 8.13      
23 A 1474 1453 6.77      
24 A 1464 1443 6.10      
25 A 1376 1356 4.83      
26 A 1287 1269 22.57      
27 A 1081 1066 2.54      
28 A 1024 1009 0.10      
29 A 950 936 17.40      
30 A 683 673 17.87      
31 A 561 553 10.69      
32 A 224 221 0.51      
33 A 159 157 1.34      

Unscaled Zero Point Vibrational Energy (zpe) 24203.8 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 23857.7 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 PBEPBE/6-31G*
ABC
0.57331 0.07334 0.07095

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.415
C2 0.000 1.318 0.413
C3 0.000 -1.318 0.413
C4 -0.875 2.187 -0.460
C5 0.875 -2.187 -0.460
H6 0.684 1.845 1.096
H7 -0.684 -1.845 1.096
H8 -1.518 2.844 0.155
H9 -0.262 2.848 -1.101
H10 -1.524 1.579 -1.110
H11 1.518 -2.844 0.155
H12 0.262 -2.848 -1.101
H13 1.524 -1.579 -1.110

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.31811.31812.51302.51302.08222.08223.23453.23702.67173.23453.23702.6717
C21.31812.63611.51123.71691.10093.30732.16792.16852.16984.43814.44063.6100
C31.31812.63613.71691.51123.30731.10094.43814.44063.61002.16792.16852.1698
C42.51301.51123.71694.71172.22954.32631.10591.10591.10125.60565.20204.5123
C52.51303.71691.51124.71174.32632.22955.60565.20204.51231.10591.10591.1012
H62.08221.10093.30732.22954.32633.93472.59462.59443.13224.85505.19914.1586
H72.08223.30731.10094.32632.22953.93474.85505.19914.15862.59462.59443.1322
H83.23452.16794.43811.10595.60562.59464.85501.77561.78926.44806.09535.5150
H93.23702.16854.44061.10595.20202.59445.19911.77561.78946.09535.72064.7739
H102.67172.16983.61001.10124.51233.13224.15861.78921.78945.51504.77394.3884
H113.23454.43812.16795.60561.10594.85502.59466.44806.09535.51501.77561.7892
H123.23704.44062.16855.20201.10595.19912.59446.09535.72064.77391.77561.7894
H132.67173.61002.16984.51231.10124.15863.13225.51504.77394.38841.78921.7894

picture of 2,3-Pentadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 125.160 C1 C2 H6 118.530
C1 C3 C5 125.160 C1 C3 H7 118.530
C2 C1 C3 179.858 C2 C4 H8 110.909
C2 C4 H9 110.956 C2 C4 H10 111.352
C3 C5 H11 110.909 C3 C5 H12 110.956
C3 C5 H13 111.352 C4 C2 H6 116.310
C5 C3 H7 116.310 H8 C4 H9 106.795
H8 C4 H10 108.321 H9 C4 H10 108.344
H11 C5 H12 106.795 H11 C5 H13 108.321
H12 C5 H13 108.344
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.328      
2 C -0.325      
3 C -0.325      
4 C -0.510      
5 C -0.510      
6 H 0.157      
7 H 0.157      
8 H 0.171      
9 H 0.170      
10 H 0.173      
11 H 0.171      
12 H 0.170      
13 H 0.173      


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 -0.209 0.209
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.539 -0.256 0.000
y -0.256 -27.508 0.000
z 0.000 0.000 -31.724
Traceless
 xyz
x -1.923 -0.256 0.000
y -0.256 4.123 0.000
z 0.000 0.000 -2.200
Polar
3z2-r2-4.401
x2-y2-4.030
xy-0.256
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.944 -1.107 0.000
y -1.107 13.661 0.000
z 0.000 0.000 5.829


<r2> (average value of r2) Å2
<r2> 173.826
(<r2>)1/2 13.184