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All results from a given calculation for C6H4 (Benzyne)

using model chemistry: MP2/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-230.237878
Energy at 298.15K-230.240963
HF Energy-229.424683
Nuclear repulsion energy186.629964
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 MP2/6-311G*
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 3237 3076 6.06      
2 A1 3213 3054 3.66      
3 A1 1929 1833 3.41      
4 A1 1501 1426 0.18      
5 A1 1379 1311 1.95      
6 A1 1179 1121 0.60      
7 A1 1064 1011 22.18      
8 A1 1005 955 4.30      
9 A1 608 578 0.07      
10 A2 865 822 0.00      
11 A2 826 785 0.00      
12 A2 525 498 0.00      
13 A2 469 446 0.00      
14 B1 855 812 0.81      
15 B1 732 696 96.06      
16 B1 381 362 6.76      
17 B2 3234 3074 18.11      
18 B2 3199 3040 0.50      
19 B2 1493 1419 1.63      
20 B2 1421 1350 12.87      
21 B2 1270 1207 0.02      
22 B2 1121 1066 1.01      
23 B2 872 829 10.68      
24 B2 587 558 9.77      

Unscaled Zero Point Vibrational Energy (zpe) 16483.0 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 15663.8 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 MP2/6-311G*
ABC
0.23249 0.18833 0.10405

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.633 -1.242
C2 0.000 -0.633 -1.242
C3 0.000 1.470 -0.132
C4 0.000 -1.470 -0.132
C5 0.000 0.705 1.060
C6 0.000 -0.705 1.060
H7 0.000 2.555 -0.128
H8 0.000 -2.555 -0.128
H9 0.000 1.227 2.015
H10 0.000 -1.227 2.015

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.26571.39042.37782.30352.66302.22133.37653.31093.7508
C21.26572.37781.39042.66302.30353.37652.22133.75083.3109
C31.39042.37782.93951.41612.48031.08484.02432.16043.4471
C42.37781.39042.93952.48031.41614.02431.08483.44712.1604
C52.30352.66301.41612.48031.41062.19813.46971.08812.1555
C62.66302.30352.48031.41611.41063.46972.19812.15551.0881
H72.22133.37651.08484.02432.19813.46975.10912.52074.3468
H83.37652.22134.02431.08483.46972.19815.10914.34682.5207
H93.31093.75082.16043.44711.08812.15552.52074.34682.4545
H103.75083.31093.44712.16042.15551.08814.34682.52072.4545

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 127.007 C1 C3 C5 110.320
C1 C3 H7 127.209 C2 C1 C3 127.007
C2 C4 C6 110.320 C2 C4 H8 127.209
C3 C5 C6 122.673 C3 C5 H9 118.660
C4 C6 C5 122.673 C4 C6 H10 118.660
C5 C3 H7 122.471 C5 C6 H10 118.668
C6 C4 H8 122.471 C6 C5 H9 118.668
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability