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All results from a given calculation for C6H4 (Benzyne)

using model chemistry: BLYP/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 BLYP/6-31G
 hartrees
Energy at 0K-230.768836
Energy at 298.15K-230.771926
Nuclear repulsion energy185.295201
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 BLYP/6-31G
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 3152 3128 5.13      
2 A1 3124 3100 7.47      
3 A1 1939 1924 0.38      
4 A1 1458 1447 0.46      
5 A1 1289 1279 1.83      
6 A1 1170 1161 0.48      
7 A1 1058 1049 20.40      
8 A1 978 971 3.70      
9 A1 624 619 0.41      
10 A2 946 938 0.00      
11 A2 852 845 0.00      
12 A2 604 600 0.00      
13 A2 458 454 0.00      
14 B1 899 892 0.04      
15 B1 740 735 68.62      
16 B1 393 390 4.35      
17 B2 3147 3123 53.93      
18 B2 3106 3083 1.33      
19 B2 1426 1416 14.90      
20 B2 1396 1385 1.25      
21 B2 1264 1254 0.06      
22 B2 1091 1083 0.56      
23 B2 853 846 30.35      
24 B2 493 489 79.63      

Unscaled Zero Point Vibrational Energy (zpe) 16229.2 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 16105.9 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 BLYP/6-31G
ABC
0.22753 0.18670 0.10255

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.635 -1.255
C2 0.000 -0.635 -1.255
C3 0.000 1.474 -0.135
C4 0.000 -1.474 -0.135
C5 0.000 0.710 1.074
C6 0.000 -0.710 1.074
H7 0.000 2.565 -0.136
H8 0.000 -2.565 -0.136
H9 0.000 1.243 2.030
H10 0.000 -1.243 2.030

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.27071.39962.38852.33052.68982.23033.39003.34053.7838
C21.27072.38851.39962.68982.33053.39002.23033.78383.3405
C31.39962.38852.94801.43012.49591.09074.03872.17663.4734
C42.38851.39962.94802.49591.43014.03871.09073.47342.1766
C52.33052.68981.43012.49591.41942.21503.49091.09412.1737
C62.68982.33052.49591.43011.41943.49092.21502.17371.0941
H72.23033.39001.09074.03872.21503.49095.12942.53754.3803
H83.39002.23034.03871.09073.49092.21505.12944.38032.5375
H93.34053.78382.17663.47341.09412.17372.53754.38032.4853
H103.78383.34053.47342.17662.17371.09414.38032.53752.4853

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 126.812 C1 C3 C5 110.882
C1 C3 H7 126.728 C2 C1 C3 126.812
C2 C4 C6 110.882 C2 C4 H8 126.728
C3 C5 C6 122.306 C3 C5 H9 118.542
C4 C6 C5 122.306 C4 C6 H10 118.542
C5 C3 H7 122.390 C5 C6 H10 119.152
C6 C4 H8 122.390 C6 C5 H9 119.152
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.003      
2 C -0.003      
3 C -0.120      
4 C -0.120      
5 C -0.103      
6 C -0.103      
7 H 0.115      
8 H 0.115      
9 H 0.111      
10 H 0.111      


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 1.617 1.617
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.839 0.000 0.000
y 0.000 -29.629 0.000
z 0.000 0.000 -34.146
Traceless
 xyz
x -4.952 0.000 0.000
y 0.000 5.863 0.000
z 0.000 0.000 -0.911
Polar
3z2-r2-1.823
x2-y2-7.210
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.707 0.000 0.000
y 0.000 11.240 0.000
z 0.000 0.000 9.097


<r2> (average value of r2) Å2
<r2> 115.396
(<r2>)1/2 10.742