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-1,3,5-triene)

using model chemistry: B3LYP/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1Ag
Energy calculated at B3LYP/6-31G**
 hartrees
Energy at 0K-233.411259
Energy at 298.15K-233.418392
Nuclear repulsion energy193.708237
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 B3LYP/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 3248 3120 0.00      
2 Ag 3159 3035 0.00      
3 Ag 3148 3024 0.00      
4 Ag 3142 3019 0.00      
5 Ag 1709 1642 0.00      
6 Ag 1654 1589 0.00      
7 Ag 1446 1389 0.00      
8 Ag 1335 1283 0.00      
9 Ag 1321 1269 0.00      
10 Ag 1227 1179 0.00      
11 Ag 951 913 0.00      
12 Ag 446 428 0.00      
13 Ag 351 338 0.00      
14 Au 1063 1021 48.84      
15 Au 973 935 4.89      
16 Au 922 886 70.94      
17 Au 711 683 7.74      
18 Au 256 246 1.18      
19 Au 102 98 0.23      
20 Bg 1030 989 0.00      
21 Bg 927 890 0.00      
22 Bg 898 863 0.00      
23 Bg 619 594 0.00      
24 Bg 227 218 0.00      
25 Bu 3248 3120 28.63      
26 Bu 3159 3035 9.45      
27 Bu 3154 3030 59.39      
28 Bu 3140 3017 0.60      
29 Bu 1705 1638 16.87      
30 Bu 1478 1420 2.23      
31 Bu 1332 1280 3.56      
32 Bu 1288 1238 2.59      
33 Bu 1166 1120 5.66      
34 Bu 984 945 2.83      
35 Bu 543 522 5.71      
36 Bu 148 142 2.00      

Unscaled Zero Point Vibrational Energy (zpe) 26102.9 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 25079.7 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 B3LYP/6-31G**
ABC
0.88941 0.04443 0.04231

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.676 0.000
C2 0.000 -0.676 0.000
C3 1.197 1.493 0.000
C4 -1.197 -1.493 0.000
C5 1.201 2.836 0.000
C6 -1.201 -2.836 0.000
H7 0.954 -1.204 0.000
H8 -0.954 1.204 0.000
H9 2.148 0.960 0.000
H10 -2.148 -0.960 0.000
H11 2.125 3.404 0.000
H12 -2.125 -3.404 0.000
H13 -0.275 -3.406 0.000
H14 0.275 3.406 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.35161.44972.47752.47153.71142.10811.09042.16672.69983.45804.59994.09062.7435
C21.35162.47751.44973.71142.47151.09042.10812.69982.16674.59993.45802.74354.0906
C31.44972.47753.82781.34284.94892.70822.17051.09014.14822.12405.91765.11512.1232
C42.47751.44973.82784.94891.34282.17052.70824.14821.09015.91762.12402.12325.1151
C52.47153.71141.34284.94896.15944.04762.70292.10185.06181.08477.07086.41361.0870
C63.71142.47154.94891.34286.15942.70294.04765.06182.10187.07081.08471.08706.4136
H72.10811.09042.70822.17054.04762.70293.07232.47143.11154.75453.78402.52124.6593
H81.09042.10812.17052.70822.70294.04763.07233.11152.47143.78404.75454.65932.5212
H92.16672.69981.09014.14822.10185.06182.47143.11154.70532.44436.10734.99263.0806
H102.69982.16674.14821.09015.06182.10183.11152.47144.70536.10732.44433.08064.9926
H113.45804.59992.12405.91761.08477.07084.75453.78402.44436.10738.02547.22001.8499
H124.59993.45805.91762.12407.07081.08473.78404.75456.10732.44438.02541.84997.2200
H134.09062.74355.11512.12326.41361.08702.52124.65934.99263.08067.22001.84996.8332
H142.74354.09062.12325.11511.08706.41364.65932.52123.08064.99261.84997.22006.8332

picture of (E)-hexa-1,3,5-triene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 124.317 C1 C2 H7 118.980
C1 C3 C5 124.467 C1 C3 H9 116.386
C2 C1 C3 124.317 C2 C1 H8 118.980
C2 C4 C6 124.467 C2 C4 H10 116.386
C3 C1 H8 116.703 C3 C5 H11 121.723
C3 C5 H14 121.452 C4 C2 H7 116.703
C4 C6 H12 121.723 C4 C6 H13 121.452
C5 C3 H9 119.147 C6 C4 H10 119.147
H11 C5 H14 116.826 H12 C6 H13 116.826
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.075      
2 C -0.075      
3 C -0.030      
4 C -0.030      
5 C -0.255      
6 C -0.255      
7 H 0.079      
8 H 0.079      
9 H 0.082      
10 H 0.082      
11 H 0.102      
12 H 0.102      
13 H 0.097      
14 H 0.097      


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 -33.295 -0.221 0.000
y -0.221 -33.727 0.000
z 0.000 0.000 -40.736
Traceless
 xyz
x 3.936 -0.221 0.000
y -0.221 3.289 0.000
z 0.000 0.000 -7.225
Polar
3z2-r2-14.450
x2-y20.432
xy-0.221
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.940 4.610 0.000
y 4.610 21.657 0.000
z 0.000 0.000 3.416


<r2> (average value of r2) Å2
<r2> 257.026
(<r2>)1/2 16.032