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All results from a given calculation for C6H4 (Benzyne)

using model chemistry: MP2=FULL/6-31G(2df,p)

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=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-230.366581
Energy at 298.15K-230.369872
Nuclear repulsion energy187.812667
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=FULL/6-31G(2df,p)
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 3273 3077 4.17      
2 A1 3247 3052 1.37      
3 A1 1962 1844 2.62      
4 A1 1505 1415 0.34      
5 A1 1382 1299 1.41      
6 A1 1177 1106 0.95      
7 A1 1075 1010 17.29      
8 A1 1009 949 3.54      
9 A1 612 575 0.15      
10 A2 964 906 0.00      
11 A2 886 833 0.00      
12 A2 698 656 0.00      
13 A2 496 466 0.00      
14 B1 919 863 0.10      
15 B1 765 719 61.45      
16 B1 403 379 4.13      
17 B2 3270 3074 10.16      
18 B2 3232 3038 0.18      
19 B2 1486 1396 1.56      
20 B2 1417 1332 12.47      
21 B2 1270 1194 0.01      
22 B2 1124 1056 0.66      
23 B2 867 815 12.02      
24 B2 566 532 14.17      

Unscaled Zero Point Vibrational Energy (zpe) 16802.3 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 15792.4 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=FULL/6-31G(2df,p)
ABC
0.23652 0.19005 0.10538

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.630 -1.233
C2 0.000 -0.630 -1.233
C3 0.000 1.462 -0.130
C4 0.000 -1.462 -0.130
C5 0.000 0.702 1.050
C6 0.000 -0.702 1.050
H7 0.000 2.543 -0.125
H8 0.000 -2.543 -0.125
H9 0.000 1.220 2.002
H10 0.000 -1.220 2.002

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.25981.38192.36512.28412.64322.21083.36073.28813.7265
C21.25982.36511.38192.64322.28413.36072.21083.72653.2881
C31.38192.36512.92431.40332.46511.08064.00492.14523.4263
C42.36511.38192.92432.46511.40334.00491.08063.42632.1452
C52.28412.64321.40332.46511.40452.18333.45111.08362.1454
C62.64322.28412.46511.40331.40453.45112.18332.14541.0836
H72.21083.36071.08064.00492.18333.45115.08552.50394.3223
H83.36072.21084.00491.08063.45112.18335.08554.32232.5039
H93.28813.72652.14523.42631.08362.14542.50394.32232.4408
H103.72653.28813.42632.14522.14541.08364.32232.50392.4408

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 127.030 C1 C3 C5 110.186
C1 C3 H7 127.306 C2 C1 C3 127.030
C2 C4 C6 110.186 C2 C4 H8 127.306
C3 C5 C6 122.784 C3 C5 H9 118.651
C4 C6 C5 122.784 C4 C6 H10 118.651
C5 C3 H7 122.508 C5 C6 H10 118.565
C6 C4 H8 122.508 C6 C5 H9 118.565
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability