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 C6H8 ((E)-hexa-2,3,4-triene)

using model chemistry: B97D3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1A'
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-233.212561
Energy at 298.15K-233.218719
HF Energy-233.212561
Nuclear repulsion energy 
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 B97D3/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3091 3030 0.00      
2 Ag 3067 3007 0.00      
3 Ag 2971 2912 0.00      
4 Ag 2163 2120 0.00      
5 Ag 1494 1464 0.00      
6 Ag 1399 1372 0.00      
7 Ag 1371 1344 0.00      
8 Ag 1102 1080 0.00      
9 Ag 1059 1038 0.00      
10 Ag 752 737 0.00      
11 Ag 510 500 0.00      
12 Ag 192 188 0.00      
13 Au 3020 2961 55.31      
14 Au 1480 1451 10.73      
15 Au 1033 1013 0.03      
16 Au 826 809 38.24      
17 Au 322 316 0.29      
18 Au 152 149 0.04      
19 Au 110 108 3.09      
20 Bg 3020 2961 0.00      
21 Bg 1480 1451 0.00      
22 Bg 1030 1010 0.00      
23 Bg 687 673 0.00      
24 Bg 551 540 0.00      
25 Bg 149 146 0.00      
26 Bu 3091 3030 59.48      
27 Bu 3067 3007 16.99      
28 Bu 2970 2912 113.80      
29 Bu 1686 1653 7.64      
30 Bu 1482 1453 14.65      
31 Bu 1398 1371 14.20      
32 Bu 1285 1260 24.84      
33 Bu 1097 1075 5.76      
34 Bu 925 907 39.01      
35 Bu 524 513 8.45      
36 Bu 101 99 1.70      

Unscaled Zero Point Vibrational Energy (zpe) 25324.8 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 24828.4 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 B97D3/6-31G*
ABC
0.68041 0.04206 0.04021

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.003 0.637 0.000
C2 -0.003 -0.637 0.000
C3 -0.003 1.966 0.000
C4 0.003 -1.966 0.000
C5 -1.248 2.818 0.000
C6 1.248 -2.818 0.000
H7 0.955 2.499 0.000
H8 -0.955 -2.499 0.000
H9 -2.154 2.200 0.000
H10 2.154 -2.200 0.000
H11 -1.272 3.476 0.885
H12 -1.272 3.476 -0.885
H13 1.272 -3.476 0.885
H14 1.272 -3.476 -0.885

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.27441.32892.60322.51463.67282.09083.27932.66433.56043.23583.23584.39474.3947
C21.27442.60321.32893.67282.51463.27932.09083.56042.66434.39474.39473.23583.2358
C31.32892.60323.93201.50854.94521.09634.56532.16384.69162.16192.16195.65945.6594
C42.60321.32893.93204.94521.50854.56531.09634.69162.16385.65945.65942.16192.1619
C52.51463.67281.50854.94526.16452.22565.32541.09736.06291.10311.10316.83786.8378
C63.67282.51464.94521.50856.16455.32542.22566.06291.09736.83786.83781.10311.1031
H72.09083.27931.09634.56532.22565.32545.35043.12344.84982.58772.58776.04896.0489
H83.27932.09084.56531.09635.32542.22565.35044.84983.12346.04896.04892.58772.5877
H92.66433.56042.16384.69161.09736.06293.12344.84986.15841.78631.78636.68916.6891
H103.56042.66434.69162.16386.06291.09734.84983.12346.15846.68916.68911.78631.7863
H113.23584.39472.16195.65941.10316.83782.58776.04891.78636.68911.76997.40357.6121
H123.23584.39472.16195.65941.10316.83782.58776.04891.78636.68911.76997.61217.4035
H134.39473.23585.65942.16196.83781.10316.04892.58776.68911.78637.40357.61211.7699
H144.39473.23585.65942.16196.83781.10316.04892.58776.68911.78637.61217.40351.7699

picture of (E)-hexa-2,3,4-triene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 178.750 C1 C3 C5 124.693
C1 C3 H7 118.740 C2 C1 C3 178.750
C2 C4 C6 124.693 C2 C4 H8 118.740
C3 C5 H9 111.294 C3 C5 H11 110.829
C3 C5 H12 110.829 C4 C6 H10 111.294
C4 C6 H13 110.829 C4 C6 H14 110.829
C5 C3 H7 116.567 C6 C4 H8 116.567
H9 C5 H11 108.504 H9 C5 H12 108.504
H10 C6 H13 108.504 H10 C6 H14 108.504
H11 C5 H12 106.727 H13 C6 H14 106.727
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.199      
2 C 0.199      
3 C -0.376      
4 C -0.376      
5 C -0.478      
6 C -0.478      
7 H 0.157      
8 H 0.157      
9 H 0.169      
10 H 0.169      
11 H 0.165      
12 H 0.165      
13 H 0.165      
14 H 0.165      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.197 -0.853 0.000
y -0.853 -29.055 0.000
z 0.000 0.000 -38.149
Traceless
 xyz
x -1.595 -0.853 0.000
y -0.853 7.618 0.000
z 0.000 0.000 -6.023
Polar
3z2-r2-12.047
x2-y2-6.142
xy-0.853
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.458 -2.284 0.000
y -2.284 21.653 0.000
z 0.000 0.000 5.253


<r2> (average value of r2) Å2
<r2> 277.797
(<r2>)1/2 16.667