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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-230.823284
Energy at 298.15K-230.826193
Nuclear repulsion energy186.007043
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 3128 3103 5.84      
2 A1 3105 3081 6.77      
3 A1 1946 1931 0.13      
4 A1 1451 1440 1.49      
5 A1 1289 1279 0.82      
6 A1 1138 1129 0.38      
7 A1 1056 1048 20.51      
8 A1 974 966 3.90      
9 A1 605 601 0.55      
10 A2 920 913 0.00      
11 A2 838 831 0.00      
12 A2 575 570 0.00      
13 A2 423 420 0.00      
14 B1 874 867 0.11      
15 B1 731 725 50.46      
16 B1 384 381 3.18      
17 B2 3123 3099 48.26      
18 B2 3089 3066 0.87      
19 B2 1419 1408 11.36      
20 B2 1385 1374 3.18      
21 B2 1247 1238 0.00      
22 B2 1078 1070 0.78      
23 B2 819 813 26.30      
24 B2 409 406 98.52      

Unscaled Zero Point Vibrational Energy (zpe) 16002.2 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 15879.0 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
0.23017 0.18764 0.10337

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 0.632 -1.247
C2 0.000 -0.632 -1.247
C3 0.000 1.471 -0.135
C4 0.000 -1.471 -0.135
C5 0.000 0.707 1.067
C6 0.000 -0.707 1.067
H7 0.000 2.563 -0.135
H8 0.000 -2.563 -0.135
H9 0.000 1.238 2.025
H10 0.000 -1.238 2.025

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.26421.39352.37932.31602.67432.22803.38293.32773.7687
C21.26422.37931.39352.67432.31603.38292.22803.76873.3277
C31.39352.37932.94181.42432.48771.09194.03372.17203.4641
C42.37931.39352.94182.48771.42434.03371.09193.46412.1720
C52.31602.67431.42432.48771.41412.21143.48401.09462.1677
C62.67432.31602.48771.42431.41413.48402.21142.16771.0946
H72.22803.38291.09194.03372.21143.48405.12562.53414.3715
H83.38292.22804.03371.09193.48402.21145.12564.37152.5341
H93.32773.76872.17203.46411.09462.16772.53414.37152.4755
H103.76873.32773.46412.17202.16771.09464.37152.53412.4755

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 127.010 C1 C3 C5 110.556
C1 C3 H7 126.976 C2 C1 C3 127.010
C2 C4 C6 110.556 C2 C4 H8 126.976
C3 C5 C6 122.434 C3 C5 H9 118.562
C4 C6 C5 122.434 C4 C6 H10 118.562
C5 C3 H7 122.468 C5 C6 H10 119.004
C6 C4 H8 122.468 C6 C5 H9 119.004
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 -0.018      
2 C -0.018      
3 C -0.070      
4 C -0.070      
5 C -0.059      
6 C -0.059      
7 H 0.075      
8 H 0.075      
9 H 0.073      
10 H 0.073      


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 1.422 1.422
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.537 0.000 0.000
y 0.000 -29.424 0.000
z 0.000 0.000 -33.654
Traceless
 xyz
x -4.998 0.000 0.000
y 0.000 5.671 0.000
z 0.000 0.000 -0.674
Polar
3z2-r2-1.347
x2-y2-7.113
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.071 0.000 0.000
y 0.000 11.377 0.000
z 0.000 0.000 9.266


<r2> (average value of r2) Å2
<r2> 114.494
(<r2>)1/2 10.700