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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-230.174771
Energy at 298.15K-230.177925
Nuclear repulsion energy187.179752
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 3246 3072 4.69      
2 A1 3218 3046 7.40      
3 A1 2004 1897 2.95      
4 A1 1523 1442 0.24      
5 A1 1350 1278 0.28      
6 A1 1196 1132 0.06      
7 A1 1081 1024 22.86      
8 A1 1031 976 3.10      
9 A1 625 592 0.16      
10 A2 912 863 0.00      
11 A2 867 820 0.00      
12 A2 565 535 0.00      
13 A2 460 435 0.00      
14 B1 903 854 0.19      
15 B1 754 714 71.98      
16 B1 389 369 4.68      
17 B2 3243 3070 25.56      
18 B2 3203 3032 1.40      
19 B2 1565 1481 2.06      
20 B2 1465 1387 11.57      
21 B2 1296 1227 0.09      
22 B2 1149 1088 0.64      
23 B2 895 847 14.91      
24 B2 570 539 21.26      

Unscaled Zero Point Vibrational Energy (zpe) 16755.8 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 15859.4 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 CCD/6-31G*
ABC
0.23306 0.19007 0.10469

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 0.628 -1.243
C2 0.000 -0.628 -1.243
C3 0.000 1.460 -0.128
C4 0.000 -1.460 -0.128
C5 0.000 0.707 1.057
C6 0.000 -0.707 1.057
H7 0.000 2.546 -0.132
H8 0.000 -2.546 -0.132
H9 0.000 1.229 2.013
H10 0.000 -1.229 2.013

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.25551.39122.36662.30182.65942.21723.36303.31133.7484
C21.25552.36661.39122.65942.30183.36302.21723.74843.3113
C31.39122.36662.91951.40452.46941.08664.00612.15373.4371
C42.36661.39122.91952.46941.40454.00611.08663.43712.1537
C52.30182.65941.40452.46941.41302.19073.46351.08932.1586
C62.65942.30182.46941.40451.41303.46352.19072.15861.0893
H72.21723.36301.08664.00612.19073.46355.09282.51744.3422
H83.36302.21724.00611.08663.46352.19075.09284.34222.5174
H93.31133.74842.15373.43711.08932.15862.51744.34222.4578
H103.74843.31133.43712.15372.15861.08934.34222.51742.4578

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 126.730 C1 C3 C5 110.838
C1 C3 H7 126.527 C2 C1 C3 126.730
C2 C4 C6 110.838 C2 C4 H8 126.527
C3 C5 C6 122.433 C3 C5 H9 118.910
C4 C6 C5 122.433 C4 C6 H10 118.910
C5 C3 H7 122.635 C5 C6 H10 118.657
C6 C4 H8 122.635 C6 C5 H9 118.657
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability