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All results from a given calculation for C6H4 (Benzyne)

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-230.849786
Energy at 298.15K-230.852820
Nuclear repulsion energy187.902067
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 mPW1PW91/6-31G*
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 3252 3084 4.91      
2 A1 3225 3059 5.59      
3 A1 2056 1949 0.07      
4 A1 1518 1439 0.37      
5 A1 1350 1280 0.65      
6 A1 1180 1119 0.14      
7 A1 1104 1047 23.40      
8 A1 1021 969 5.69      
9 A1 622 590 0.39      
10 A2 975 924 0.00      
11 A2 880 834 0.00      
12 A2 601 570 0.00      
13 A2 445 422 0.00      
14 B1 926 878 0.07      
15 B1 760 721 70.72      
16 B1 394 374 4.67      
17 B2 3248 3080 34.93      
18 B2 3210 3044 1.20      
19 B2 1511 1433 12.23      
20 B2 1457 1382 6.84      
21 B2 1294 1227 0.07      
22 B2 1128 1070 1.68      
23 B2 843 799 28.55      
24 B2 398 377 114.20      

Unscaled Zero Point Vibrational Energy (zpe) 16698.7 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 15835.3 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 mPW1PW91/6-31G*
ABC
0.23598 0.19078 0.10549

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.624 -1.232
C2 0.000 -0.624 -1.232
C3 0.000 1.460 -0.133
C4 0.000 -1.460 -0.133
C5 0.000 0.701 1.053
C6 0.000 -0.701 1.053
H7 0.000 2.544 -0.134
H8 0.000 -2.544 -0.134
H9 0.000 1.225 2.006
H10 0.000 -1.225 2.006

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.24871.37992.35572.28642.64192.21083.35263.29283.7284
C21.24872.35571.37992.64192.28643.35262.21083.72843.2928
C31.37992.35572.91921.40832.46551.08404.00322.15213.4324
C42.35571.37992.91922.46551.40834.00321.08403.43242.1521
C52.28642.64191.40832.46551.40302.19193.45571.08672.1487
C62.64192.28642.46551.40831.40303.45572.19192.14871.0867
H72.21083.35261.08404.00322.19193.45575.08722.51404.3336
H83.35262.21084.00321.08403.45572.19195.08724.33362.5140
H93.29283.72842.15213.43241.08672.14872.51404.33362.4493
H103.72843.29283.43242.15212.14871.08674.33362.51402.4493

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 127.251 C1 C3 C5 110.178
C1 C3 H7 127.196 C2 C1 C3 127.251
C2 C4 C6 110.178 C2 C4 H8 127.196
C3 C5 C6 122.571 C3 C5 H9 118.649
C4 C6 C5 122.571 C4 C6 H10 118.649
C5 C3 H7 122.626 C5 C6 H10 118.779
C6 C4 H8 122.626 C6 C5 H9 118.779
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.006      
2 C -0.006      
3 C -0.189      
4 C -0.189      
5 C -0.171      
6 C -0.171      
7 H 0.185      
8 H 0.185      
9 H 0.180      
10 H 0.180      


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 1.549 1.549
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.862 0.000 0.000
y 0.000 -28.452 0.000
z 0.000 0.000 -33.350
Traceless
 xyz
x -5.961 0.000 0.000
y 0.000 6.654 0.000
z 0.000 0.000 -0.693
Polar
3z2-r2-1.386
x2-y2-8.410
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.020 0.000 0.000
y 0.000 11.018 0.000
z 0.000 0.000 8.865


<r2> (average value of r2) Å2
<r2> 112.448
(<r2>)1/2 10.604