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All results from a given calculation for C6H4 (Benzyne)

using model chemistry: HF/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-229.437267
Energy at 298.15K-229.440480
Nuclear repulsion energy189.221743
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 HF/6-311G**
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 3369 3061 6.79      
2 A1 3333 3028 12.79      
3 A1 2193 1992 0.00      
4 A1 1590 1445 0.22      
5 A1 1384 1258 0.86      
6 A1 1230 1118 1.13      
7 A1 1072 974 21.48      
8 A1 1064 967 16.42      
9 A1 670 609 0.73      
10 A2 1094 994 0.00      
11 A2 962 874 0.00      
12 A2 633 575 0.00      
13 A2 453 412 0.00      
14 B1 1048 952 0.01      
15 B1 832 756 91.28      
16 B1 429 390 8.37      
17 B2 3366 3058 31.94      
18 B2 3315 3012 4.64      
19 B2 1630 1481 24.67      
20 B2 1527 1387 3.06      
21 B2 1355 1231 0.02      
22 B2 1199 1089 1.19      
23 B2 897 815 33.70      
24 B2 325 295 187.47      

Unscaled Zero Point Vibrational Energy (zpe) 17484.4 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 15884.6 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 HF/6-311G**
ABC
0.23932 0.19312 0.10688

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.609 -1.225
C2 0.000 -0.609 -1.225
C3 0.000 1.452 -0.128
C4 0.000 -1.452 -0.128
C5 0.000 0.705 1.044
C6 0.000 -0.705 1.044
H7 0.000 2.525 -0.136
H8 0.000 -2.525 -0.136
H9 0.000 1.219 1.991
H10 0.000 -1.219 1.991

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.21871.38312.33502.27152.62262.20353.31803.27283.6988
C21.21872.33501.38312.62262.27153.31802.20353.69883.2728
C31.38312.33502.90431.39062.45531.07273.97702.13183.4092
C42.33501.38312.90432.45531.39063.97701.07273.40922.1318
C52.27152.62261.39062.45531.40992.16923.43881.07652.1436
C62.62262.27152.45531.39061.40993.43882.16922.14361.0765
H72.20353.31801.07273.97702.16923.43885.04972.49574.3053
H83.31802.20353.97701.07273.43882.16925.04974.30532.4957
H93.27283.69882.13183.40921.07652.14362.49574.30532.4371
H103.69883.27283.40922.13182.14361.07654.30532.49572.4371

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 127.544 C1 C3 C5 109.955
C1 C3 H7 127.141 C2 C1 C3 127.544
C2 C4 C6 109.955 C2 C4 H8 127.141
C3 C5 C6 122.501 C3 C5 H9 119.003
C4 C6 C5 122.501 C4 C6 H10 119.003
C5 C3 H7 122.903 C5 C6 H10 118.497
C6 C4 H8 122.903 C6 C5 H9 118.497
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.047      
2 C -0.047      
3 C -0.072      
4 C -0.072      
5 C -0.108      
6 C -0.108      
7 H 0.117      
8 H 0.117      
9 H 0.110      
10 H 0.110      


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 1.777 1.777
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.550 0.000 0.000
y 0.000 -28.859 0.000
z 0.000 0.000 -35.207
Traceless
 xyz
x -6.517 0.000 0.000
y 0.000 8.020 0.000
z 0.000 0.000 -1.503
Polar
3z2-r2-3.005
x2-y2-9.691
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.874 0.000 0.000
y 0.000 11.348 0.000
z 0.000 0.000 9.034


<r2> (average value of r2) Å2
<r2> 112.066
(<r2>)1/2 10.586