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

using model chemistry: B3PW91/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/cc-pVDZ
 hartrees
Energy at 0K-195.228393
Energy at 298.15K-195.235440
Nuclear repulsion energy151.748191
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 B3PW91/cc-pVDZ
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 3151 3040 11.06      
2 A 3125 3015 4.51      
3 A 3100 2991 17.30      
4 A 3034 2928 8.19      
5 A 1502 1449 2.71      
6 A 1451 1400 5.84      
7 A 1430 1380 0.55      
8 A 1380 1332 1.36      
9 A 1163 1122 0.14      
10 A 1081 1043 1.48      
11 A 1040 1003 0.00      
12 A 894 863 21.70      
13 A 830 801 0.01      
14 A 538 519 3.45      
15 A 293 283 1.22      
16 A 181 175 0.00      
17 A 138 133 1.81      
18 A 3151 3041 25.57      
19 A 3123 3014 4.50      
20 A 3100 2991 17.32      
21 A 3033 2927 74.65      
22 A 2087 2014 13.14      
23 A 1459 1408 8.86      
24 A 1450 1400 6.24      
25 A 1379 1331 4.36      
26 A 1289 1244 22.73      
27 A 1100 1061 1.56      
28 A 1036 1000 0.33      
29 A 967 933 18.86      
30 A 705 681 17.19      
31 A 568 548 12.11      
32 A 228 220 0.61      
33 A 161 155 1.62      

Unscaled Zero Point Vibrational Energy (zpe) 24583.5 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 23723.1 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 B3PW91/cc-pVDZ
ABC
0.57944 0.07384 0.07146

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.409
C2 0.000 1.313 0.410
C3 0.000 -1.313 0.410
C4 -0.870 2.181 -0.457
C5 0.870 -2.181 -0.457
H6 0.686 1.828 1.097
H7 -0.686 -1.828 1.097
H8 -1.509 2.836 0.160
H9 -0.257 2.841 -1.094
H10 -1.520 1.578 -1.107
H11 1.509 -2.836 0.160
H12 0.257 -2.841 -1.094
H13 1.520 -1.578 -1.107

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.31321.31322.50302.50302.06952.06953.22243.22442.66493.22243.22442.6649
C21.31322.62631.50393.70371.09883.28732.15852.15902.16364.42244.42523.6017
C31.31322.62633.70371.50393.28731.09884.42244.42523.60172.15852.15902.1636
C42.50301.50393.70374.69652.22744.30301.10331.10331.09895.58715.18604.5022
C52.50303.70371.50394.69654.30302.22745.58715.18604.50221.10331.10331.0989
H62.06951.09883.28732.22744.30303.90422.59092.59153.12814.82785.17464.1416
H72.06953.28731.09884.30302.22743.90424.82785.17464.14162.59092.59153.1281
H83.22242.15854.42241.10335.58712.59094.82781.77161.78536.42556.07635.5017
H93.22442.15904.42521.10335.18602.59155.17461.77161.78556.07635.70464.7631
H102.66492.16363.60171.09894.50223.12814.14161.78531.78555.50174.76314.3826
H113.22244.42242.15855.58711.10334.82782.59096.42556.07635.50171.77161.7853
H123.22444.42522.15905.18601.10335.17462.59156.07635.70464.76311.77161.7855
H132.66493.60172.16364.50221.09894.14163.12815.50174.76314.38261.78531.7855

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 125.237 C1 C2 H6 117.921
C1 C3 C5 125.237 C1 C3 H7 117.921
C2 C1 C3 179.982 C2 C4 H8 110.827
C2 C4 H9 110.866 C2 C4 H10 111.505
C3 C5 H11 110.827 C3 C5 H12 110.866
C3 C5 H13 111.505 C4 C2 H6 116.842
C5 C3 H7 116.842 H8 C4 H9 106.806
H8 C4 H10 108.329 H9 C4 H10 108.342
H11 C5 H12 106.806 H11 C5 H13 108.329
H12 C5 H13 108.342
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.214      
2 C -0.270      
3 C -0.270      
4 C -0.033      
5 C -0.033      
6 H 0.042      
7 H 0.042      
8 H 0.056      
9 H 0.056      
10 H 0.042      
11 H 0.056      
12 H 0.056      
13 H 0.042      


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 -0.219 0.219
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.809 -0.262 0.000
y -0.262 -27.450 0.000
z 0.000 0.000 -31.997
Traceless
 xyz
x -2.085 -0.262 0.000
y -0.262 4.453 0.000
z 0.000 0.000 -2.368
Polar
3z2-r2-4.735
x2-y2-4.359
xy-0.262
xz0.000
yz0.000


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> 172.830
(<r2>)1/2 13.146