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All results from a given calculation for C6H4 (Benzyne)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-230.817726
Energy at 298.15K-230.820739
Nuclear repulsion energy187.610463
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 B3PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3230 3090 5.13      
2 A1 3204 3065 5.94      
3 A1 2038 1950 0.07      
4 A1 1508 1442 0.49      
5 A1 1342 1284 0.71      
6 A1 1174 1123 0.21      
7 A1 1097 1050 23.09      
8 A1 1014 970 5.45      
9 A1 619 592 0.40      
10 A2 965 923 0.00      
11 A2 872 835 0.00      
12 A2 596 570 0.00      
13 A2 442 423 0.00      
14 B1 916 877 0.07      
15 B1 755 722 69.20      
16 B1 392 375 4.50      
17 B2 3226 3086 37.96      
18 B2 3188 3050 1.15      
19 B2 1496 1432 11.88      
20 B2 1446 1384 6.58      
21 B2 1286 1230 0.06      
22 B2 1121 1072 1.59      
23 B2 839 802 28.16      
24 B2 400 383 111.08      

Unscaled Zero Point Vibrational Energy (zpe) 16583.1 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 15865.1 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 B3PW91/6-31G*
ABC
0.23511 0.19030 0.10517

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.626 -1.234
C2 0.000 -0.626 -1.234
C3 0.000 1.461 -0.134
C4 0.000 -1.461 -0.134
C5 0.000 0.702 1.055
C6 0.000 -0.702 1.055
H7 0.000 2.547 -0.135
H8 0.000 -2.547 -0.135
H9 0.000 1.227 2.009
H10 0.000 -1.227 2.009

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.25131.38172.35932.29072.64672.21363.35773.29833.7349
C21.25132.35931.38172.64672.29073.35772.21363.73493.2983
C31.38172.35932.92251.41072.46871.08574.00832.15543.4376
C42.35931.38172.92252.46871.41074.00831.08573.43762.1554
C52.29072.64671.41072.46871.40442.19543.46031.08842.1519
C62.64672.29072.46871.41071.40443.46032.19542.15191.0884
H72.21363.35771.08574.00832.19543.46035.09402.51764.3402
H83.35772.21364.00831.08573.46032.19545.09404.34022.5176
H93.29833.73492.15543.43761.08842.15192.51764.34022.4537
H103.73493.29833.43762.15542.15191.08844.34022.51762.4537

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 127.212 C1 C3 C5 110.236
C1 C3 H7 127.155 C2 C1 C3 127.212
C2 C4 C6 110.236 C2 C4 H8 127.155
C3 C5 C6 122.552 C3 C5 H9 118.628
C4 C6 C5 122.552 C4 C6 H10 118.628
C5 C3 H7 122.609 C5 C6 H10 118.820
C6 C4 H8 122.609 C6 C5 H9 118.820
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.006      
2 C -0.006      
3 C -0.184      
4 C -0.184      
5 C -0.164      
6 C -0.164      
7 H 0.179      
8 H 0.179      
9 H 0.174      
10 H 0.174      


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 1.542 1.542
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.809 0.000 0.000
y 0.000 -28.524 0.000
z 0.000 0.000 -33.342
Traceless
 xyz
x -5.876 0.000 0.000
y 0.000 6.552 0.000
z 0.000 0.000 -0.676
Polar
3z2-r2-1.352
x2-y2-8.285
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.025 0.000 0.000
y 0.000 11.079 0.000
z 0.000 0.000 8.934


<r2> (average value of r2) Å2
<r2> 112.731
(<r2>)1/2 10.617