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All results from a given calculation for C6H4 (Benzyne)

using model chemistry: CCD/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 CCD/6-31G
 hartrees
Energy at 0K-229.876100
Energy at 298.15K-229.879332
Nuclear repulsion energy184.962304
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 CCD/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 3199 3069 5.35      
2 A1 3169 3040 9.35      
3 A1 1924 1846 5.79      
4 A1 1493 1432 0.59      
5 A1 1313 1260 0.64      
6 A1 1195 1147 0.10      
7 A1 1050 1008 20.03      
8 A1 1006 965 1.68      
9 A1 633 608 0.02      
10 A2 883 847 0.00      
11 A2 847 812 0.00      
12 A2 606 581 0.00      
13 A2 475 456 0.00      
14 B1 877 842 0.42      
15 B1 732 703 79.40      
16 B1 388 373 5.78      
17 B2 3195 3065 34.09      
18 B2 3151 3024 1.20      
19 B2 1531 1469 0.01      
20 B2 1449 1390 13.81      
21 B2 1279 1227 1.10      
22 B2 1135 1089 0.12      
23 B2 962 923 2.45      
24 B2 653 627 1.24      

Unscaled Zero Point Vibrational Energy (zpe) 16572.3 cm-1
Scaled (by 0.9595) Zero Point Vibrational Energy (zpe) 15901.1 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 CCD/6-31G
ABC
0.22632 0.18624 0.10217

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.637 -1.262
C2 0.000 -0.637 -1.262
C3 0.000 1.474 -0.128
C4 0.000 -1.474 -0.128
C5 0.000 0.715 1.074
C6 0.000 -0.715 1.074
H7 0.000 2.565 -0.132
H8 0.000 -2.565 -0.132
H9 0.000 1.242 2.032
H10 0.000 -1.242 2.032

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.27311.41002.39612.33752.69912.23473.39463.34993.7926
C21.27312.39611.41002.69912.33753.39462.23473.79263.3499
C31.41002.39612.94801.42112.49761.09054.03852.17283.4703
C42.39611.41002.94802.49761.42114.03851.09053.47032.1728
C52.33752.69911.42112.49761.43092.20773.49471.09372.1795
C62.69912.33752.49761.42111.43093.49472.20772.17951.0937
H72.23473.39461.09054.03852.20773.49475.12902.53694.3790
H83.39462.23474.03851.09053.49472.20775.12904.37902.5369
H93.34993.79262.17283.47031.09372.17952.53694.37902.4838
H103.79263.34993.47032.17282.17951.09374.37902.53692.4838

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 126.437 C1 C3 C5 111.302
C1 C3 H7 126.200 C2 C1 C3 126.437
C2 C4 C6 111.302 C2 C4 H8 126.200
C3 C5 C6 122.261 C3 C5 H9 118.964
C4 C6 C5 122.261 C4 C6 H10 118.964
C5 C3 H7 122.498 C5 C6 H10 118.774
C6 C4 H8 122.498 C6 C5 H9 118.774
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability