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All results from a given calculation for C6H4 (Benzyne)

using model chemistry: G3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at G3
 hartrees
Energy at 0K-230.745758
Energy at 298.15K-230.749287
Nuclear repulsion energy189.049990
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 HF/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 3409 3212 5.90      
2 A1 3371 3176 15.80      
3 A1 2212 2084 0.04      
4 A1 1611 1518 0.15      
5 A1 1403 1322 0.42      
6 A1 1244 1172 0.64      
7 A1 1088 1026 30.13      
8 A1 1077 1014 4.77      
9 A1 671 632 0.77      
10 A2 1100 1036 0.00      
11 A2 971 915 0.00      
12 A2 633 596 0.00      
13 A2 444 419 0.00      
14 B1 1050 990 0.04      
15 B1 839 791 76.28      
16 B1 431 407 6.04      
17 B2 3405 3208 43.34      
18 B2 3353 3159 5.01      
19 B2 1649 1554 24.85      
20 B2 1545 1456 3.26      
21 B2 1372 1293 0.08      
22 B2 1211 1141 0.83      
23 B2 902 850 33.47      
24 B2 316 298 189.90      

Unscaled Zero Point Vibrational Energy (zpe) 17653.7 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 16633.3 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*
ABC
0.23331 0.18935 0.10452

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.634 -1.243
C2 0.000 -0.634 -1.243
C3 0.000 1.462 -0.128
C4 0.000 -1.462 -0.128
C5 0.000 0.705 1.056
C6 0.000 -0.705 1.056
H7 0.000 2.548 -0.125
H8 0.000 -2.548 -0.125
H9 0.000 1.228 2.010
H10 0.000 -1.228 2.010

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.26811.38942.37472.30062.66102.21683.37303.30733.7488
C21.26812.37471.38942.66102.30063.37302.21683.74883.3073
C31.38942.37472.92451.40532.46971.08594.01042.15063.4366
C42.37471.38942.92452.46971.40534.01041.08593.43662.1506
C52.30062.66101.40532.46971.41032.18903.46111.08812.1561
C62.66102.30062.46971.40531.41033.46112.18902.15611.0881
H72.21683.37301.08594.01042.18903.46115.09622.51014.3383
H83.37302.21684.01041.08593.46112.18905.09624.33832.5101
H93.30733.74882.15063.43661.08812.15612.51014.33832.4568
H103.74883.30733.43662.15062.15611.08814.33832.51012.4568

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 127.467 C1 C3 C5 110.028
C1 C3 H7 127.086 C2 C1 C3 127.467
C2 C4 C6 110.028 C2 C4 H8 127.086
C3 C5 C6 122.505 C3 C5 H9 119.047
C4 C6 C5 122.505 C4 C6 H10 119.047
C5 C3 H7 122.886 C5 C6 H10 118.448
C6 C4 H8 122.886 C6 C5 H9 118.448
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability