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All results from a given calculation for C6H6 (Benzvalene)

using model chemistry: MP2/CEP-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/CEP-31G*
 hartrees
Energy at 0K-37.004036
Energy at 298.15K-37.010331
HF Energy-36.280377
Nuclear repulsion energy106.837698
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/CEP-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 3271 3105 7.00      
2 A1 3246 3081 5.74      
3 A1 3206 3044 1.73      
4 A1 1584 1504 5.20      
5 A1 1413 1342 0.32      
6 A1 1189 1129 3.72      
7 A1 1103 1047 4.03      
8 A1 993 943 0.43      
9 A1 911 865 0.13      
10 A1 756 718 3.78      
11 A1 635 603 7.63      
12 A2 1125 1068 0.00      
13 A2 904 858 0.00      
14 A2 880 835 0.00      
15 A2 800 760 0.00      
16 A2 531 504 0.00      
17 B1 3228 3065 7.24      
18 B1 1123 1066 22.18      
19 B1 976 927 0.73      
20 B1 766 727 150.68      
21 B1 629 598 1.91      
22 B1 512 486 15.32      
23 B2 3240 3076 5.86      
24 B2 3205 3043 24.63      
25 B2 1350 1282 4.72      
26 B2 1275 1210 5.92      
27 B2 1225 1163 0.31      
28 B2 1001 950 0.24      
29 B2 868 824 12.11      
30 B2 809 768 5.56      

Unscaled Zero Point Vibrational Energy (zpe) 21376.6 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 20295.0 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/CEP-31G*
ABC
0.23971 0.17217 0.12708

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.745 0.000 -1.013
C2 -0.745 0.000 -1.013
C3 0.000 1.085 -0.206
C4 0.000 -1.085 -0.206
C5 0.000 0.688 1.262
C6 0.000 -0.688 1.262
H7 1.492 0.000 -1.813
H8 -1.492 0.000 -1.813
H9 0.000 2.125 -0.554
H10 0.000 -2.125 -0.554
H11 0.000 1.374 2.112
H12 0.000 -1.374 2.112

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.48901.54381.54382.49102.49101.09472.37532.29812.29813.49463.4946
C21.48901.54381.54382.49102.49102.37531.09472.29812.29813.49463.4946
C31.54381.54382.17031.52092.30212.44662.44661.09683.22922.33643.3798
C41.54381.54382.17032.30211.52092.44662.44663.22921.09683.37982.3364
C52.49102.49101.52092.30211.37623.48643.48642.31613.34871.09262.2307
C62.49102.49102.30211.52091.37623.48643.48643.34872.31612.23071.0926
H71.09472.37532.44662.44663.48643.48642.98442.88572.88574.41844.4184
H82.37531.09472.44662.44663.48643.48642.98442.88572.88574.41844.4184
H92.29812.29811.09683.22922.31613.34872.88572.88574.25042.77054.3996
H102.29812.29813.22921.09683.34872.31612.88572.88574.25044.39962.7705
H113.49463.49462.33643.37981.09262.23074.41844.41842.77054.39962.7482
H123.49463.49463.37982.33642.23071.09264.41844.41844.39962.77052.7482

picture of Benzvalene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 61.167 C1 C2 C4 61.167
C1 C2 H8 133.077 C1 C3 C2 57.666
C1 C3 C5 108.737 C1 C3 H9 120.036
C1 C4 C2 57.666 C1 C4 C6 108.737
C1 C4 H10 120.036 C2 C1 C3 61.167
C2 C1 C4 61.167 C2 C1 H7 133.077
C2 C3 C5 108.737 C2 C3 H9 120.036
C2 C4 C6 108.737 C2 C4 H10 120.036
C3 C1 C4 89.319 C3 C1 H7 135.339
C3 C2 C4 89.319 C3 C2 H8 135.339
C3 C5 C6 105.133 C3 C5 H11 125.974
C4 C1 H7 135.339 C4 C2 H8 135.339
C4 C6 C5 105.133 C4 C6 H12 125.974
C5 C3 H9 123.643 C5 C6 H12 128.893
C6 C4 H10 123.643 C6 C5 H11 128.893
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability