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 (Benzvalene)

using model chemistry: B2PLYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP/6-31G
 hartrees
Energy at 0K-231.688055
Energy at 298.15K-231.694488
HF Energy-231.507786
Nuclear repulsion energy212.236384
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 B2PLYP/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3292 3292 1.75      
2 A1 3285 3285 21.65      
3 A1 3246 3246 2.18      
4 A1 1610 1610 2.58      
5 A1 1392 1392 0.14      
6 A1 1195 1195 2.29      
7 A1 1140 1140 3.28      
8 A1 1010 1010 0.36      
9 A1 908 908 0.00      
10 A1 797 797 10.06      
11 A1 727 727 0.90      
12 A2 1157 1157 0.00      
13 A2 951 951 0.00      
14 A2 898 898 0.00      
15 A2 747 747 0.00      
16 A2 547 547 0.00      
17 B1 3265 3265 10.34      
18 B1 1134 1134 27.11      
19 B1 1042 1042 0.03      
20 B1 760 760 93.02      
21 B1 634 634 0.73      
22 B1 523 523 13.26      
23 B2 3263 3263 12.54      
24 B2 3245 3245 16.23      
25 B2 1366 1366 6.36      
26 B2 1301 1301 0.30      
27 B2 1214 1214 2.33      
28 B2 1002 1002 0.05      
29 B2 878 878 0.80      
30 B2 835 835 13.18      

Unscaled Zero Point Vibrational Energy (zpe) 21681.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 21681.5 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 B2PLYP/6-31G
ABC
0.24191 0.17295 0.12773

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.736 0.000 -1.024
C2 -0.736 0.000 -1.024
C3 0.000 1.087 -0.199
C4 0.000 -1.087 -0.199
C5 0.000 0.676 1.258
C6 0.000 -0.676 1.258
H7 1.510 0.000 -1.777
H8 -1.510 0.000 -1.777
H9 0.000 2.120 -0.526
H10 0.000 -2.120 -0.526
H11 0.000 1.356 2.098
H12 0.000 -1.356 2.098

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.47181.55081.55082.49092.49091.07942.36822.29852.29853.48293.4829
C21.47181.55081.55082.49092.49092.36821.07942.29852.29853.48293.4829
C31.55081.55082.17491.51372.28692.43942.43941.08283.22382.31313.3536
C41.55081.55082.17492.28691.51372.43942.43943.22381.08283.35362.3131
C52.49092.49091.51372.28691.35123.45593.45592.29493.31591.08142.1984
C62.49092.49092.28691.51371.35123.45593.45593.31592.29492.19841.0814
H71.07942.36822.43942.43943.45593.45593.01912.88732.88734.37434.3743
H82.36821.07942.43942.43943.45593.45593.01912.88732.88734.37434.3743
H92.29852.29851.08283.22382.29493.31592.88732.88734.23942.73344.3549
H102.29852.29853.22381.08283.31592.29492.88732.88734.23944.35492.7334
H113.48293.48292.31313.35361.08142.19844.37434.37432.73344.35492.7113
H123.48293.48293.35362.31312.19841.08144.37434.37434.35492.73342.7113

picture of Benzvalene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 61.672 C1 C2 C4 61.672
C1 C2 H8 135.790 C1 C3 C2 56.656
C1 C3 C5 108.739 C1 C3 H9 120.518
C1 C4 C2 56.656 C1 C4 C6 108.739
C1 C4 H10 120.518 C2 C1 C3 61.672
C2 C1 C4 61.672 C2 C1 H7 135.790
C2 C3 C5 108.739 C2 C3 H9 120.518
C2 C4 C6 108.739 C2 C4 H10 120.518
C3 C1 C4 89.048 C3 C1 H7 135.330
C3 C2 C4 89.048 C3 C2 H8 135.330
C3 C5 C6 105.787 C3 C5 H11 125.249
C4 C1 H7 135.330 C4 C2 H8 135.330
C4 C6 C5 105.787 C4 C6 H12 125.249
C5 C3 H9 123.361 C5 C6 H12 128.964
C6 C4 H10 123.361 C6 C5 H11 128.964
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.086      
2 C -0.086      
3 C -0.290      
4 C -0.290      
5 C -0.055      
6 C -0.055      
7 H 0.146      
8 H 0.146      
9 H 0.142      
10 H 0.142      
11 H 0.143      
12 H 0.143      


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 -0.916 0.916
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.526 0.000 0.000
y 0.000 -32.850 0.000
z 0.000 0.000 -33.022
Traceless
 xyz
x -4.590 0.000 0.000
y 0.000 2.424 0.000
z 0.000 0.000 2.166
Polar
3z2-r24.332
x2-y2-4.676
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.484 0.000 0.000
y 0.000 8.452 0.000
z 0.000 0.000 8.158


<r2> (average value of r2) Å2
<r2> 112.630
(<r2>)1/2 10.613