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All results from a given calculation for C6H4 (Benzyne)

using model chemistry: B3LYP/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 B3LYP/STO-3G
 hartrees
Energy at 0K-228.049528
Energy at 298.15K-228.052389
Nuclear repulsion energy185.358298
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/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 3465 3092 2.63      
2 A1 3449 3078 9.77      
3 A1 2067 1845 16.37      
4 A1 1566 1397 3.04      
5 A1 1347 1202 0.24      
6 A1 1219 1088 0.47      
7 A1 1111 992 6.03      
8 A1 1050 937 0.93      
9 A1 641 572 0.02      
10 A2 1019 910 0.00      
11 A2 911 813 0.00      
12 A2 642 573 0.00      
13 A2 474 423 0.00      
14 B1 965 861 0.00      
15 B1 780 696 28.46      
16 B1 401 357 1.12      
17 B2 3456 3084 6.70      
18 B2 3436 3066 0.05      
19 B2 1576 1406 12.91      
20 B2 1505 1343 19.80      
21 B2 1327 1184 2.70      
22 B2 1166 1041 0.00      
23 B2 894 798 23.73      
24 B2 491 438 63.49      

Unscaled Zero Point Vibrational Energy (zpe) 17478.9 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 15598.2 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/STO-3G
ABC
0.22853 0.18638 0.10266

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.631 -1.253
C2 0.000 -0.631 -1.253
C3 0.000 1.475 -0.134
C4 0.000 -1.475 -0.134
C5 0.000 0.712 1.070
C6 0.000 -0.712 1.070
H7 0.000 2.575 -0.132
H8 0.000 -2.575 -0.132
H9 0.000 1.242 2.034
H10 0.000 -1.242 2.034

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.26161.40222.38522.32432.68312.24463.39653.34313.7829
C21.26162.38521.40222.68312.32433.39652.24463.78293.3431
C31.40222.38522.95091.42522.49691.09984.05082.18013.4761
C42.38521.40222.95092.49691.42524.05081.09983.47612.1801
C52.32432.68311.42522.49691.42442.21703.50021.10002.1791
C62.68312.32432.49691.42521.42443.50022.21702.17911.1000
H72.24463.39651.09984.05082.21703.50025.15062.54304.3888
H83.39652.24464.05081.09983.50022.21705.15064.38882.5430
H93.34313.78292.18013.47611.10002.17912.54304.38882.4841
H103.78293.34313.47612.18012.17911.10004.38882.54302.4841

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 127.041 C1 C3 C5 110.578
C1 C3 H7 127.146 C2 C1 C3 127.041
C2 C4 C6 110.578 C2 C4 H8 127.146
C3 C5 C6 122.381 C3 C5 H9 118.821
C4 C6 C5 122.381 C4 C6 H10 118.821
C5 C3 H7 122.277 C5 C6 H10 118.798
C6 C4 H8 122.277 C6 C5 H9 118.798
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.033      
2 C -0.033      
3 C -0.072      
4 C -0.072      
5 C -0.070      
6 C -0.070      
7 H 0.090      
8 H 0.090      
9 H 0.085      
10 H 0.085      


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 1.023 1.023
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.466 0.000 0.000
y 0.000 -28.342 0.000
z 0.000 0.000 -30.969
Traceless
 xyz
x -3.811 0.000 0.000
y 0.000 3.876 0.000
z 0.000 0.000 -0.065
Polar
3z2-r2-0.130
x2-y2-5.124
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.948 0.000 0.000
y 0.000 7.520 0.000
z 0.000 0.000 5.581


<r2> (average value of r2) Å2
<r2> 113.747
(<r2>)1/2 10.665