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All results from a given calculation for C6H4 (Benzyne)

using model chemistry: PBEPBE/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 PBEPBE/6-31G
 hartrees
Energy at 0K-230.567048
Energy at 298.15K-230.570151
Nuclear repulsion energy185.736556
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 PBEPBE/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 3171 3127 4.07      
2 A1 3143 3100 3.78      
3 A1 1960 1933 0.20      
4 A1 1466 1446 0.41      
5 A1 1311 1293 1.65      
6 A1 1170 1154 0.82      
7 A1 1075 1060 21.52      
8 A1 989 976 5.00      
9 A1 622 613 0.29      
10 A2 950 937 0.00      
11 A2 855 843 0.00      
12 A2 609 601 0.00      
13 A2 463 457 0.00      
14 B1 903 890 0.03      
15 B1 740 730 82.15      
16 B1 390 385 5.33      
17 B2 3165 3122 42.11      
18 B2 3125 3082 0.67      
19 B2 1437 1418 10.65      
20 B2 1411 1392 7.25      
21 B2 1265 1248 0.00      
22 B2 1099 1084 1.17      
23 B2 848 837 30.26      
24 B2 491 484 79.11      

Unscaled Zero Point Vibrational Energy (zpe) 16329.7 cm-1
Scaled (by 0.9862) Zero Point Vibrational Energy (zpe) 16104.3 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 PBEPBE/6-31G
ABC
0.22948 0.18710 0.10307

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.635 -1.250
C2 0.000 -0.635 -1.250
C3 0.000 1.473 -0.135
C4 0.000 -1.473 -0.135
C5 0.000 0.707 1.069
C6 0.000 -0.707 1.069
H7 0.000 2.564 -0.134
H8 0.000 -2.564 -0.134
H9 0.000 1.240 2.026
H10 0.000 -1.240 2.026

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.27051.39442.38462.31972.67932.22823.38833.33073.7740
C21.27052.38461.39442.67932.31973.38832.22823.77403.3307
C31.39442.38462.94551.42652.49041.09154.03702.17323.4677
C42.38461.39442.94552.49041.42654.03701.09153.46772.1732
C52.31972.67931.42652.49041.41482.21273.48591.09492.1694
C62.67932.31972.49041.42651.41483.48592.21272.16941.0949
H72.22823.38831.09154.03702.21273.48595.12852.53404.3744
H83.38832.22824.03701.09153.48592.21275.12854.37442.5340
H93.33073.77402.17323.46771.09492.16942.53404.37442.4791
H103.77403.33073.46772.17322.16941.09494.37442.53402.4791

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 126.917 C1 C3 C5 110.635
C1 C3 H7 126.942 C2 C1 C3 126.917
C2 C4 C6 110.635 C2 C4 H8 126.942
C3 C5 C6 122.448 C3 C5 H9 118.474
C4 C6 C5 122.448 C4 C6 H10 118.474
C5 C3 H7 122.423 C5 C6 H10 119.078
C6 C4 H8 122.423 C6 C5 H9 119.078
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.003      
2 C 0.003      
3 C -0.163      
4 C -0.163      
5 C -0.145      
6 C -0.145      
7 H 0.155      
8 H 0.155      
9 H 0.151      
10 H 0.151      


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 1.713 1.713
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.058 0.000 0.000
y 0.000 -29.147 0.000
z 0.000 0.000 -33.949
Traceless
 xyz
x -5.510 0.000 0.000
y 0.000 6.356 0.000
z 0.000 0.000 -0.846
Polar
3z2-r2-1.692
x2-y2-7.911
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.744 0.000 0.000
y 0.000 11.192 0.000
z 0.000 0.000 9.078


<r2> (average value of r2) Å2
<r2> 114.863
(<r2>)1/2 10.717