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 C6H6 (1,2,4,5-Hexatetraene)

using model chemistry: B3LYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3LYP/STO-3G
 hartrees
Energy at 0K-229.244436
Energy at 298.15K-229.248074
HF Energy-229.244436
Nuclear repulsion energy174.583396
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/STO-3G
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 3407 3040 0.00      
2 Ag 3353 2992 0.00      
3 Ag 2160 1928 0.00      
4 Ag 1618 1444 0.00      
5 Ag 1500 1338 0.00      
6 Ag 1228 1096 0.00      
7 Ag 1084 967 0.00      
8 Ag 941 840 0.00      
9 Ag 551 492 0.00      
10 Ag 235 209 0.00      
11 Au 3482 3107 2.74      
12 Au 1092 974 0.40      
13 Au 989 883 20.66      
14 Au 499 445 3.50      
15 Au 352 314 2.42      
16 Au 81 72 0.15      
17 Bg 3482 3107 0.00      
18 Bg 1094 977 0.00      
19 Bg 949 847 0.00      
20 Bg 707 631 0.00      
21 Bg 323 288 0.00      
22 Bu 3413 3045 29.96      
23 Bu 3353 2992 48.61      
24 Bu 2198 1962 4.68      
25 Bu 1591 1420 5.07      
26 Bu 1358 1212 9.50      
27 Bu 1173 1047 1.01      
28 Bu 941 840 61.30      
29 Bu 556 496 8.31      
30 Bu 125 112 0.37      

Unscaled Zero Point Vibrational Energy (zpe) 21915.5 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 19557.4 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 B3LYP/STO-3G
ABC
1.04656 0.04448 0.04344

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.332 0.672 0.000
C2 0.332 -0.672 0.000
C3 0.332 1.818 0.000
C4 -0.332 -1.818 0.000
C5 0.991 2.952 0.000
C6 -0.991 -2.952 0.000
H7 -1.434 0.675 0.000
H8 1.434 -0.675 0.000
H9 1.283 3.458 0.932
H10 1.283 3.458 -0.932
H11 -1.283 -3.458 0.932
H12 -1.283 -3.458 -0.932

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.49861.32422.49002.63613.68371.10222.22043.35273.35274.33974.3397
C21.49862.49001.32423.68372.63612.22041.10224.33974.33973.35273.3527
C31.32422.49003.69621.31194.95032.10332.72562.11302.11305.59615.5961
C42.49001.32423.69624.95031.31192.72562.10335.59615.59612.11302.1130
C52.63613.68371.31194.95036.22823.32663.65391.10041.10046.86556.8655
C63.68372.63614.95031.31196.22823.65393.32666.86556.86551.10041.1004
H71.10222.22042.10332.72563.32663.65393.16924.00004.00004.23944.2394
H82.22041.10222.72562.10333.65393.32663.16924.23944.23944.00004.0000
H93.35274.33972.11305.59611.10046.86554.00004.23941.86497.37717.6092
H103.35274.33972.11305.59611.10046.86554.00004.23941.86497.60927.3771
H114.33973.35275.59612.11306.86551.10044.23944.00007.37717.60921.8649
H124.33973.35275.59612.11306.86551.10044.23944.00007.60927.37711.8649

picture of 1,2,4,5-Hexatetraene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 123.682 C1 C2 H8 116.411
C1 C3 C5 179.878 C2 C1 C3 123.682
C2 C1 H7 116.411 C2 C4 C6 179.878
C3 C1 H7 119.908 C3 C5 H9 122.073
C3 C5 H10 122.073 C4 C2 H8 119.908
C4 C6 H11 122.073 C4 C6 H12 122.073
H9 C5 H10 115.854 H11 C6 H12 115.854
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.100      
2 C -0.100      
3 C 0.005      
4 C 0.005      
5 C -0.184      
6 C -0.184      
7 H 0.095      
8 H 0.095      
9 H 0.092      
10 H 0.092      
11 H 0.092      
12 H 0.092      


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 -31.909 2.217 0.000
y 2.217 -29.615 0.000
z 0.000 0.000 -33.070
Traceless
 xyz
x -0.567 2.217 0.000
y 2.217 2.875 0.000
z 0.000 0.000 -2.308
Polar
3z2-r2-4.617
x2-y2-2.295
xy2.217
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.684 5.064 0.000
y 5.064 14.044 0.000
z 0.000 0.000 2.290


<r2> (average value of r2) Å2
<r2> 246.712
(<r2>)1/2 15.707