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All results from a given calculation for C6H4 (Benzyne)

using model chemistry: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-230.208751
Energy at 298.15K-230.211599
Nuclear repulsion energy186.717068
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 MP2/6-31+G**
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 3286 3091 6.86      
2 A1 3260 3067 2.88      
3 A1 1949 1833 1.37      
4 A1 1515 1425 1.52      
5 A1 1399 1316 0.56      
6 A1 1188 1118 0.69      
7 A1 1078 1014 22.76      
8 A1 1014 954 3.23      
9 A1 611 574 0.04      
10 A2 876 824 0.00      
11 A2 839 789 0.00      
12 A2 454 427 0.00      
13 A2 284 267 0.00      
14 B1 870 819 0.84      
15 B1 734 690 98.13      
16 B1 369 347 5.97      
17 B2 3283 3088 16.10      
18 B2 3246 3053 0.45      
19 B2 1512 1422 0.52      
20 B2 1436 1351 10.09      
21 B2 1288 1211 0.01      
22 B2 1132 1064 1.11      
23 B2 873 821 11.06      
24 B2 586 551 10.71      

Unscaled Zero Point Vibrational Energy (zpe) 16540.1 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 15557.6 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 MP2/6-31+G**
ABC
0.23241 0.18865 0.10413

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.636 -1.246
C2 0.000 -0.636 -1.246
C3 0.000 1.466 -0.128
C4 0.000 -1.466 -0.128
C5 0.000 0.706 1.059
C6 0.000 -0.706 1.059
H7 0.000 2.547 -0.125
H8 0.000 -2.547 -0.125
H9 0.000 1.229 2.009
H10 0.000 -1.229 2.009

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.27141.39242.38032.30582.66702.21573.37433.30853.7510
C21.27142.38031.39242.66702.30583.37432.21573.75103.3085
C31.39242.38032.93161.40902.47531.08144.01312.15023.4389
C42.38031.39242.93162.47531.40904.01311.08143.43892.1502
C52.30582.66701.40902.47531.41272.18903.46251.08422.1556
C62.66702.30582.47531.40901.41273.46252.18902.15561.0842
H72.21573.37431.08144.01312.18903.46255.09452.50914.3374
H83.37432.21574.01311.08143.46252.18905.09454.33742.5091
H93.30853.75102.15023.43891.08422.15562.50914.33742.4570
H103.75103.30853.43892.15022.15561.08424.33742.50912.4570

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 126.598 C1 C3 C5 110.787
C1 C3 H7 126.726 C2 C1 C3 126.598
C2 C4 C6 110.787 C2 C4 H8 126.726
C3 C5 C6 122.615 C3 C5 H9 118.596
C4 C6 C5 122.615 C4 C6 H10 118.596
C5 C3 H7 122.487 C5 C6 H10 118.789
C6 C4 H8 122.487 C6 C5 H9 118.789
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability