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All results from a given calculation for C6H4 (Benzyne)

using model chemistry: HF/STO-3G

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/STO-3G
 hartrees
Energy at 0K-226.547630
Energy at 298.15K-226.550861
Nuclear repulsion energy188.573955
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/STO-3G
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 3739 3053 0.47      
2 A1 3720 3038 11.82      
3 A1 2342 1912 21.30      
4 A1 1710 1396 3.44      
5 A1 1444 1179 0.85      
6 A1 1322 1079 0.40      
7 A1 1154 942 0.32      
8 A1 1105 902 15.22      
9 A1 704 575 0.14      
10 A2 1176 960 0.00      
11 A2 1031 842 0.00      
12 A2 721 589 0.00      
13 A2 530 433 0.00      
14 B1 1124 918 0.00      
15 B1 888 725 17.40      
16 B1 451 368 0.85      
17 B2 3731 3046 6.93      
18 B2 3704 3024 3.71      
19 B2 1787 1459 18.45      
20 B2 1647 1345 16.40      
21 B2 1443 1178 5.71      
22 B2 1294 1056 0.11      
23 B2 971 793 30.86      
24 B2 477 389 119.48      

Unscaled Zero Point Vibrational Energy (zpe) 19105.4 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 15599.5 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/STO-3G
ABC
0.23826 0.19149 0.10617

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.609 -1.230
C2 0.000 -0.609 -1.230
C3 0.000 1.458 -0.127
C4 0.000 -1.458 -0.127
C5 0.000 0.710 1.044
C6 0.000 -0.710 1.044
H7 0.000 2.542 -0.128
H8 0.000 -2.542 -0.128
H9 0.000 1.222 2.000
H10 0.000 -1.222 2.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.21821.39172.34272.27612.62882.22443.33773.28693.7123
C21.21822.34271.39172.62882.27613.33772.22443.71233.2869
C31.39172.34272.91531.38912.46381.08393.99932.13933.4206
C42.34271.39172.91532.46381.38913.99931.08393.42062.1393
C52.27612.62881.38912.46381.42032.17453.45661.08392.1553
C62.62882.27612.46381.38911.42033.45662.17452.15531.0839
H72.22443.33771.08393.99932.17453.45665.08322.50384.3233
H83.33772.22443.99931.08393.45662.17455.08324.32332.5038
H93.28693.71232.13933.42061.08392.15532.50384.32332.4437
H103.71233.28693.42062.13932.15531.08394.32332.50382.4437

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 127.570 C1 C3 C5 109.872
C1 C3 H7 127.492 C2 C1 C3 127.570
C2 C4 C6 109.872 C2 C4 H8 127.492
C3 C5 C6 122.558 C3 C5 H9 119.271
C4 C6 C5 122.558 C4 C6 H10 119.271
C5 C3 H7 122.636 C5 C6 H10 118.171
C6 C4 H8 122.636 C6 C5 H9 118.171
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.046      
2 C -0.046      
3 C -0.043      
4 C -0.043      
5 C -0.052      
6 C -0.052      
7 H 0.074      
8 H 0.074      
9 H 0.066      
10 H 0.066      


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 0.903 0.903
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.345 0.000 0.000
y 0.000 -28.973 0.000
z 0.000 0.000 -31.569
Traceless
 xyz
x -3.074 0.000 0.000
y 0.000 3.484 0.000
z 0.000 0.000 -0.410
Polar
3z2-r2-0.819
x2-y2-4.372
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.820 0.000 0.000
y 0.000 7.354 0.000
z 0.000 0.000 5.184


<r2> (average value of r2) Å2
<r2> 110.904
(<r2>)1/2 10.531