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All results from a given calculation for C8H6 (benzocyclobutadiene)

using model chemistry: M06-2X/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at M06-2X/TZVP
 hartrees
Energy at 0K-308.321611
Energy at 298.15K-308.327212
HF Energy-308.321611
Nuclear repulsion energy313.497316
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 M06-2X/TZVP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3237 3063 2.13      
2 A1 3214 3041 5.02      
3 A1 3200 3028 6.90      
4 A1 1732 1639 2.02      
5 A1 1608 1522 1.97      
6 A1 1515 1434 4.70      
7 A1 1450 1372 11.55      
8 A1 1198 1134 0.00      
9 A1 1111 1051 0.03      
10 A1 1067 1010 0.52      
11 A1 980 927 5.77      
12 A1 829 785 0.55      
13 A1 551 521 0.16      
14 A2 974 921 0.00      
15 A2 929 879 0.00      
16 A2 893 845 0.00      
17 A2 725 686 0.00      
18 A2 560 530 0.00      
19 A2 283 268 0.00      
20 B1 936 885 10.78      
21 B1 759 718 116.14      
22 B1 710 671 12.75      
23 B1 355 336 1.92      
24 B1 222 210 14.49      
25 B2 3208 3035 9.38      
26 B2 3207 3034 3.12      
27 B2 3187 3016 0.04      
28 B2 1688 1597 0.72      
29 B2 1470 1391 4.45      
30 B2 1311 1241 4.54      
31 B2 1258 1191 13.21      
32 B2 1104 1045 2.38      
33 B2 1060 1003 0.48      
34 B2 879 832 0.69      
35 B2 658 622 0.67      
36 B2 419 396 4.26      

Unscaled Zero Point Vibrational Energy (zpe) 24242.7 cm-1
Scaled (by 0.9462) Zero Point Vibrational Energy (zpe) 22938.5 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 M06-2X/TZVP
ABC
0.16253 0.07368 0.05070

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.436 -0.616
C2 0.000 0.681 -1.840
C3 0.000 -0.681 -1.840
C4 0.000 -1.436 -0.616
C5 0.000 -0.670 2.037
C6 0.000 0.670 2.037
C7 0.000 0.714 0.523
C8 0.000 -0.714 0.523
H9 0.000 2.518 -0.644
H10 0.000 1.217 -2.780
H11 0.000 -1.217 -2.780
H12 0.000 -2.518 -0.644
H13 0.000 -1.437 2.797
H14 0.000 1.437 2.797

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14
C11.43772.44532.87203.38712.76151.34812.43311.08252.17483.42393.95424.46103.4130
C21.43771.36242.44534.10523.87662.36252.74362.19191.08242.11873.41555.09734.6977
C32.44531.36241.43773.87664.10522.74362.36253.41552.11871.08242.19194.69775.0973
C42.87202.44531.43772.76153.38712.43311.34813.95423.42392.17481.08253.41304.4610
C53.38714.10523.87662.76151.33932.05151.51504.16515.17334.84793.25621.07972.2392
C62.76153.87664.10523.38711.33931.51502.05153.25624.84795.17334.16512.23921.0797
C71.34812.36252.74362.43312.05151.51501.42852.14813.34063.82593.43633.13032.3863
C82.43312.74362.36251.34811.51502.05151.42853.43633.82593.34062.14812.38633.1303
H91.08252.19193.41553.95424.16513.25622.14813.43632.50094.30325.03625.24203.6066
H102.17481.08242.11873.42395.17334.84793.34063.82592.50092.43504.30326.17625.5811
H113.42392.11871.08242.17484.84795.17333.82593.34064.30322.43502.50095.58116.1762
H123.95423.41552.19191.08253.25624.16513.43632.14815.03624.30322.50093.60665.2420
H134.46105.09734.69773.41301.07972.23923.13032.38635.24206.17625.58113.60662.8733
H143.41304.69775.09734.46102.23921.07972.38633.13033.60665.58116.17625.24202.8733

picture of benzocyclobutadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 121.669 C1 C2 H10 118.632
C1 C7 C6 149.318 C1 C7 N8 122.369
C2 C1 C7 115.963 C2 C1 H9 120.202
C2 C3 C4 121.669 C2 C3 H11 119.700
C3 C2 H10 119.700 C3 C4 N8 115.963
C3 C4 H12 120.202 C4 C3 H11 118.632
C4 N8 C5 149.318 C4 N8 C7 122.369
C5 C6 C7 91.686 C5 C6 H14 135.263
C5 N8 C7 88.314 C6 C5 N8 91.686
C6 C5 H13 135.263 C6 C7 N8 88.314
C7 C1 H9 123.835 C7 C6 H14 133.050
N8 C4 H12 123.835 N8 C5 H13 133.050
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.059      
2 C -0.161      
3 C -0.161      
4 C -0.059      
5 C -0.168      
6 C -0.168      
7 C -0.079      
8 C -0.079      
9 H 0.158      
10 H 0.149      
11 H 0.149      
12 H 0.158      
13 H 0.160      
14 H 0.160      


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 0.655 0.655
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -51.382 0.000 0.000
y 0.000 -40.948 0.000
z 0.000 0.000 -40.538
Traceless
 xyz
x -10.640 0.000 0.000
y 0.000 5.012 0.000
z 0.000 0.000 5.627
Polar
3z2-r211.255
x2-y2-10.435
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.850 0.000 0.000
y 0.000 13.731 0.000
z 0.000 0.000 16.207


<r2> (average value of r2) Å2
<r2> 219.640
(<r2>)1/2 14.820