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All results from a given calculation for C6H4 (Benzyne)

using model chemistry: B3PW91/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/cc-pVDZ
 hartrees
Energy at 0K-230.834681
Energy at 298.15K-230.837715
Nuclear repulsion energy187.266122
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 B3PW91/cc-pVDZ
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 3220 3108 4.86      
2 A1 3196 3084 3.00      
3 A1 2035 1964 0.00      
4 A1 1492 1439 0.88      
5 A1 1329 1283 0.52      
6 A1 1153 1113 0.07      
7 A1 1092 1054 23.58      
8 A1 1006 971 8.56      
9 A1 616 594 0.35      
10 A2 972 938 0.00      
11 A2 870 839 0.00      
12 A2 597 576 0.00      
13 A2 440 425 0.00      
14 B1 921 888 0.01      
15 B1 750 724 65.97      
16 B1 389 376 4.76      
17 B2 3217 3104 24.82      
18 B2 3180 3069 0.66      
19 B2 1484 1432 10.31      
20 B2 1431 1381 6.74      
21 B2 1260 1216 0.30      
22 B2 1106 1068 2.23      
23 B2 834 804 30.08      
24 B2 398 384 113.20      

Unscaled Zero Point Vibrational Energy (zpe) 16493.2 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 15915.9 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 B3PW91/cc-pVDZ
ABC
0.23474 0.18937 0.10481

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.627 -1.235
C2 0.000 -0.627 -1.235
C3 0.000 1.465 -0.133
C4 0.000 -1.465 -0.133
C5 0.000 0.703 1.055
C6 0.000 -0.703 1.055
H7 0.000 2.556 -0.133
H8 0.000 -2.556 -0.133
H9 0.000 1.229 2.014
H10 0.000 -1.229 2.014

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.25431.38432.36462.29192.64882.22193.36883.30493.7425
C21.25432.36461.38432.64882.29193.36882.22193.74253.3049
C31.38432.36462.93011.41222.47241.09114.02122.16053.4456
C42.36461.38432.93012.47241.41224.02121.09113.44562.1605
C52.29192.64881.41222.47241.40552.20163.46881.09392.1570
C62.64882.29192.47241.41221.40553.46882.20162.15701.0939
H72.22193.36881.09114.02122.20163.46885.11242.52394.3521
H83.36882.22194.02121.09113.46882.20165.11244.35212.5239
H93.30493.74252.16053.44561.09392.15702.52394.35212.4589
H103.74253.30493.44562.16052.15701.09394.35212.52392.4589

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 127.250 C1 C3 C5 110.081
C1 C3 H7 127.283 C2 C1 C3 127.250
C2 C4 C6 110.081 C2 C4 H8 127.283
C3 C5 C6 122.669 C3 C5 H9 118.551
C4 C6 C5 122.669 C4 C6 H10 118.551
C5 C3 H7 122.636 C5 C6 H10 118.780
C6 C4 H8 122.636 C6 C5 H9 118.780
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.048      
2 C -0.048      
3 C 0.011      
4 C 0.011      
5 C -0.009      
6 C -0.009      
7 H 0.027      
8 H 0.027      
9 H 0.020      
10 H 0.020      


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 1.598 1.598
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.314 0.000 0.000
y 0.000 -28.902 0.000
z 0.000 0.000 -34.048
Traceless
 xyz
x -5.839 0.000 0.000
y 0.000 6.778 0.000
z 0.000 0.000 -0.940
Polar
3z2-r2-1.879
x2-y2-8.411
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.480 0.000 0.000
y 0.000 11.580 0.000
z 0.000 0.000 9.455


<r2> (average value of r2) Å2
<r2> 113.408
(<r2>)1/2 10.649