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All results from a given calculation for C6H4 (Benzyne)

using model chemistry: B3LYP/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 B3LYP/6-311G*
 hartrees
Energy at 0K-230.962306
Energy at 298.15K-230.965373
Nuclear repulsion energy187.791649
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/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 3200 3092 7.71      
2 A1 3174 3067 8.83      
3 A1 2012 1944 0.11      
4 A1 1489 1439 0.21      
5 A1 1313 1269 1.63      
6 A1 1166 1127 0.00      
7 A1 1075 1038 23.75      
8 A1 1001 968 6.99      
9 A1 627 606 0.38      
10 A2 959 926 0.00      
11 A2 864 835 0.00      
12 A2 603 582 0.00      
13 A2 450 434 0.00      
14 B1 911 880 0.03      
15 B1 747 722 86.94      
16 B1 395 382 6.38      
17 B2 3196 3088 42.91      
18 B2 3159 3052 1.63      
19 B2 1476 1426 15.50      
20 B2 1428 1380 3.13      
21 B2 1276 1233 0.03      
22 B2 1111 1074 1.55      
23 B2 851 822 31.13      
24 B2 429 414 107.89      

Unscaled Zero Point Vibrational Energy (zpe) 16455.6 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 15901.1 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/6-311G*
ABC
0.23468 0.19120 0.10536

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.622 -1.235
C2 0.000 -0.622 -1.235
C3 0.000 1.458 -0.133
C4 0.000 -1.458 -0.133
C5 0.000 0.702 1.057
C6 0.000 -0.702 1.057
H7 0.000 2.541 -0.136
H8 0.000 -2.541 -0.136
H9 0.000 1.228 2.008
H10 0.000 -1.228 2.008

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.24411.38272.35342.29352.64722.21123.34843.29903.7335
C21.24412.35341.38272.64722.29353.34842.21123.73353.2990
C31.38272.35342.91511.40972.46631.08343.99852.15333.4347
C42.35341.38272.91512.46631.40973.99851.08343.43472.1533
C52.29352.64721.40972.46631.40492.19183.45591.08642.1520
C62.64722.29352.46631.40971.40493.45592.19182.15201.0864
H72.21123.34841.08343.99852.19183.45595.08192.51404.3363
H83.34842.21123.99851.08343.45592.19185.08194.33632.5140
H93.29903.73352.15333.43471.08642.15202.51404.33632.4564
H103.73353.29903.43472.15332.15201.08644.33632.51402.4564

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 127.175 C1 C3 C5 110.437
C1 C3 H7 127.019 C2 C1 C3 127.175
C2 C4 C6 110.437 C2 C4 H8 127.019
C3 C5 C6 122.389 C3 C5 H9 118.667
C4 C6 C5 122.389 C4 C6 H10 118.667
C5 C3 H7 122.544 C5 C6 H10 118.944
C6 C4 H8 122.544 C6 C5 H9 118.944
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.002      
2 C -0.002      
3 C -0.215      
4 C -0.215      
5 C -0.199      
6 C -0.199      
7 H 0.213      
8 H 0.213      
9 H 0.204      
10 H 0.204      


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 1.642 1.642
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.893 0.000 0.000
y 0.000 -29.264 0.000
z 0.000 0.000 -34.486
Traceless
 xyz
x -6.019 0.000 0.000
y 0.000 6.926 0.000
z 0.000 0.000 -0.907
Polar
3z2-r2-1.814
x2-y2-8.630
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.812 0.000 0.000
y 0.000 11.531 0.000
z 0.000 0.000 9.521


<r2> (average value of r2) Å2
<r2> 113.173
(<r2>)1/2 10.638