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All results from a given calculation for C6H4 (Benzyne)

using model chemistry: MP2/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-31G
 hartrees
Energy at 0K-229.851253
Energy at 298.15K-229.854416
Nuclear repulsion energy184.618539
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 MP2/6-31G
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 3229 3089 5.25      
2 A1 3200 3062 5.15      
3 A1 1891 1809 5.69      
4 A1 1481 1417 0.01      
5 A1 1357 1299 1.98      
6 A1 1213 1160 0.62      
7 A1 1045 1000 19.95      
8 A1 998 955 1.02      
9 A1 629 602 0.03      
10 A2 860 823 0.00      
11 A2 831 795 0.00      
12 A2 562 538 0.00      
13 A2 469 449 0.00      
14 B1 854 817 1.80      
15 B1 729 698 84.69      
16 B1 388 372 6.13      
17 B2 3225 3085 30.72      
18 B2 3183 3045 0.54      
19 B2 1493 1428 0.91      
20 B2 1425 1363 12.58      
21 B2 1280 1225 1.40      
22 B2 1134 1085 0.17      
23 B2 926 886 3.86      
24 B2 640 612 2.41      

Unscaled Zero Point Vibrational Energy (zpe) 16519.6 cm-1
Scaled (by 0.9568) Zero Point Vibrational Energy (zpe) 15805.9 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 MP2/6-31G
ABC
0.22584 0.18522 0.10176

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.642 -1.266
C2 0.000 -0.642 -1.266
C3 0.000 1.478 -0.126
C4 0.000 -1.478 -0.126
C5 0.000 0.716 1.074
C6 0.000 -0.716 1.074
H7 0.000 2.566 -0.126
H8 0.000 -2.566 -0.126
H9 0.000 1.243 2.029
H10 0.000 -1.243 2.029

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.28391.41382.40722.34062.70492.23673.40483.34943.7962
C21.28392.40721.41382.70492.34063.40482.23673.79623.3494
C31.41382.40722.95621.42112.50031.08834.04452.16763.4712
C42.40721.41382.95622.50031.42114.04451.08833.47122.1676
C52.34062.70491.42112.50031.43162.20543.49451.09142.1797
C62.70492.34062.50031.42111.43163.49452.20542.17971.0914
H72.23673.40481.08834.04452.20543.49455.13282.52884.3770
H83.40482.23674.04451.08833.49452.20545.13284.37702.5288
H93.34943.79622.16763.47121.09142.17972.52884.37702.4866
H103.79623.34943.47122.16762.17971.09144.37702.52882.4866

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 126.256 C1 C3 C5 111.305
C1 C3 H7 126.246 C2 C1 C3 126.256
C2 C4 C6 111.305 C2 C4 H8 126.246
C3 C5 C6 122.439 C3 C5 H9 118.658
C4 C6 C5 122.439 C4 C6 H10 118.658
C5 C3 H7 122.449 C5 C6 H10 118.903
C6 C4 H8 122.449 C6 C5 H9 118.903
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability