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All results from a given calculation for C6H4 (Benzyne)

using model chemistry: MP2=FULL/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=FULL/6-31G*
 hartrees
Energy at 0K-230.191294
Energy at 298.15K-230.194447
Nuclear repulsion energy187.025323
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*
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 3257 3069 4.89      
2 A1 3234 3047 3.13      
3 A1 1960 1847 3.21      
4 A1 1525 1437 0.18      
5 A1 1406 1325 1.28      
6 A1 1203 1134 0.78      
7 A1 1085 1023 20.28      
8 A1 1023 964 2.38      
9 A1 616 581 0.09      
10 A2 896 844 0.00      
11 A2 857 807 0.00      
12 A2 564 531 0.00      
13 A2 472 445 0.00      
14 B1 882 831 0.68      
15 B1 750 706 74.37      
16 B1 389 366 4.56      
17 B2 3254 3066 19.66      
18 B2 3220 3034 0.38      
19 B2 1526 1438 1.04      
20 B2 1446 1362 13.58      
21 B2 1295 1220 0.08      
22 B2 1143 1077 0.66      
23 B2 883 832 10.17      
24 B2 592 557 10.49      

Unscaled Zero Point Vibrational Energy (zpe) 16738.1 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 15770.6 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 126.590 C1 C3 C5 110.811
C1 C3 H7 126.733 C2 C1 C3 126.590
C2 C4 C6 110.811 C2 C4 H8 126.733
C3 C5 C6 122.599 C3 C5 H9 118.656
C4 C6 C5 122.599 C4 C6 H10 118.656
C5 C3 H7 122.456 C5 C6 H10 118.744
C6 C4 H8 122.456 C6 C5 H9 118.744
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability