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All results from a given calculation for C8H6 (benzocyclobutadiene)

using model chemistry: wB97X-D/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at wB97X-D/6-31+G**
 hartrees
Energy at 0K-308.268585
Energy at 298.15K-308.274266
HF Energy-308.268585
Nuclear repulsion energy312.677687
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 wB97X-D/6-31+G**
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 3297 3139 9.93      
2 A1 3244 3089 13.40      
3 A1 3229 3075 10.90      
4 A1 1739 1656 1.24      
5 A1 1620 1542 3.38      
6 A1 1526 1453 4.65      
7 A1 1457 1388 10.51      
8 A1 1205 1147 0.00      
9 A1 1116 1063 0.11      
10 A1 1091 1039 0.87      
11 A1 989 942 6.76      
12 A1 831 792 0.54      
13 A1 553 526 0.17      
14 A2 989 942 0.00      
15 A2 942 897 0.00      
16 A2 888 846 0.00      
17 A2 775 738 0.00      
18 A2 587 559 0.00      
19 A2 297 283 0.00      
20 B1 929 885 8.33      
21 B1 759 723 141.17      
22 B1 729 694 0.06      
23 B1 364 347 3.19      
24 B1 230 219 14.45      
25 B2 3266 3110 1.44      
26 B2 3237 3082 30.13      
27 B2 3216 3063 0.08      
28 B2 1696 1615 0.86      
29 B2 1481 1410 3.43      
30 B2 1317 1254 8.39      
31 B2 1273 1212 8.57      
32 B2 1110 1057 3.17      
33 B2 1064 1013 0.74      
34 B2 884 842 0.60      
35 B2 658 627 0.66      
36 B2 428 408 4.48      

Unscaled Zero Point Vibrational Energy (zpe) 24507.4 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 23338.4 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 wB97X-D/6-31+G**
ABC
0.16151 0.07337 0.05045

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.442 -0.622
C2 0.000 0.688 -1.840
C3 0.000 -0.688 -1.840
C4 0.000 -1.442 -0.622
C5 0.000 -0.674 2.043
C6 0.000 0.674 2.043
C7 0.000 0.710 0.521
C8 0.000 -0.710 0.521
H9 0.000 2.527 -0.643
H10 0.000 1.219 -2.787
H11 0.000 -1.219 -2.787
H12 0.000 -2.527 -0.643
H13 0.000 -1.428 2.818
H14 0.000 1.428 2.818

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14
C11.43362.45402.88483.40222.77291.35762.43691.08502.17663.43113.96964.48013.4398
C21.43361.37512.45404.11463.88302.36202.74432.19531.08552.12883.43075.11644.7170
C32.45401.37511.43363.88304.11462.74432.36203.43072.12881.08552.19534.71705.1164
C42.88482.45401.43362.77293.40222.43691.35763.96963.43112.17661.08503.43984.4801
C53.40224.11463.88302.77291.34702.05611.52164.17785.18714.86013.26281.08202.2401
C62.77293.88304.11463.40221.34701.52162.05613.26284.86015.18714.17782.24011.0820
C71.35762.36202.74432.43692.05611.52161.41972.15813.34723.82963.43993.13772.4064
C82.43692.74432.36201.35761.52162.05611.41973.43993.82963.34722.15812.40643.1377
H91.08502.19533.43073.96964.17783.26282.15813.43992.51174.31675.05445.25543.6310
H102.17661.08552.12883.43115.18714.86013.34723.82962.51172.43864.31676.19875.6088
H113.43112.12881.08552.17664.86015.18713.82963.34724.31672.43862.51175.60886.1987
H123.96963.43072.19531.08503.26284.17783.43992.15815.05444.31672.51173.63105.2554
H134.48015.11644.71703.43981.08202.24013.13772.40645.25546.19875.60883.63102.8561
H143.43984.71705.11644.48012.24011.08202.40643.13773.63105.60886.19875.25542.8561

picture of benzocyclobutadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 121.771 C1 C2 H10 118.898
C1 C7 C6 148.713 C1 C7 N8 122.655
C2 C1 C7 115.575 C2 C1 H9 120.668
C2 C3 C4 121.771 C2 C3 H11 119.331
C3 C2 H10 119.331 C3 C4 N8 115.575
C3 C4 H12 120.668 C4 C3 H11 118.898
C4 N8 C5 148.713 C4 N8 C7 122.655
C5 C6 C7 91.368 C5 C6 H14 134.212
C5 N8 C7 88.632 C6 C5 N8 91.368
C6 C5 H13 134.212 C6 C7 N8 88.632
C7 C1 H9 123.758 C7 C6 H14 134.420
N8 C4 H12 123.758 N8 C5 H13 134.420
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.103      
2 C -0.103      
3 C -0.103      
4 C -0.103      
5 C -0.164      
6 C -0.164      
7 C -0.113      
8 C -0.113      
9 H 0.160      
10 H 0.151      
11 H 0.151      
12 H 0.160      
13 H 0.173      
14 H 0.173      


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 0.688 0.688
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -51.289 0.000 0.000
y 0.000 -40.695 0.000
z 0.000 0.000 -40.478
Traceless
 xyz
x -10.702 0.000 0.000
y 0.000 5.188 0.000
z 0.000 0.000 5.514
Polar
3z2-r211.029
x2-y2-10.593
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.357 0.000 0.000
y 0.000 14.112 0.000
z 0.000 0.000 16.756


<r2> (average value of r2) Å2
<r2> 220.507
(<r2>)1/2 14.849