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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-230.223381
Energy at 298.15K-230.226555
Nuclear repulsion energy187.168708
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 3290 3074 5.47      
2 A1 3268 3053 3.37      
3 A1 1960 1832 3.32      
4 A1 1527 1427 0.36      
5 A1 1411 1318 0.77      
6 A1 1196 1117 0.74      
7 A1 1086 1014 18.72      
8 A1 1022 955 2.20      
9 A1 615 575 0.08      
10 A2 912 852 0.00      
11 A2 866 809 0.00      
12 A2 555 518 0.00      
13 A2 470 440 0.00      
14 B1 895 836 0.53      
15 B1 753 704 66.31      
16 B1 387 362 3.97      
17 B2 3286 3071 21.79      
18 B2 3253 3040 0.29      
19 B2 1530 1430 0.59      
20 B2 1448 1353 12.49      
21 B2 1296 1211 0.11      
22 B2 1140 1065 0.53      
23 B2 882 824 9.96      
24 B2 593 554 10.12      

Unscaled Zero Point Vibrational Energy (zpe) 16819.9 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 15716.5 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
0.23352 0.18961 0.10464

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 -0.127
C4 0.000 -1.462 -0.127
C5 0.000 0.705 1.056
C6 0.000 -0.705 1.056
H7 0.000 2.542 -0.123
H8 0.000 -2.542 -0.123
H9 0.000 1.225 2.006
H10 0.000 -1.225 2.006

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.26811.38912.37422.30012.66052.21223.36773.30193.7430
C21.26812.37421.38912.66052.30013.36772.21223.74303.3019
C31.38912.37422.92351.40482.46881.08044.00392.14603.4306
C42.37421.38912.92352.46881.40484.00391.08043.43062.1460
C52.30012.66051.40482.46881.40982.18343.45471.08272.1510
C62.66052.30012.46881.40481.40983.45472.18342.15101.0827
H72.21223.36771.08044.00392.18343.45475.08442.50354.3274
H83.36772.21224.00391.08043.45472.18345.08444.32742.5035
H93.30193.74302.14603.43061.08272.15102.50354.32742.4505
H103.74303.30193.43062.14602.15101.08274.32742.50352.4505

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 126.573 C1 C3 C5 110.826
C1 C3 H7 126.773 C2 C1 C3 126.573
C2 C4 C6 110.826 C2 C4 H8 126.773
C3 C5 C6 122.602 C3 C5 H9 118.674
C4 C6 C5 122.602 C4 C6 H10 118.674
C5 C3 H7 122.401 C5 C6 H10 118.724
C6 C4 H8 122.401 C6 C5 H9 118.724
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability