return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C6H6 (Fulvene)

using model chemistry: MP4/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP4/6-31G*
 hartrees
Energy at 0K-231.477271
Energy at 298.15K-231.482788
HF Energy-230.640634
Nuclear repulsion energy199.708127
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 MP4/6-31G*
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 3243 3096        
2 A1 3220 3074        
3 A1 3158 3015        
4 A1 1697 1620        
5 A1 1544 1474        
6 A1 1473 1406        
7 A1 1387 1324        
8 A1 1121 1070        
9 A1 1016 970        
10 A1 915 874        
11 A1 673 643        
12 A2 833 795        
13 A2 756 722        
14 A2 661 631        
15 A2 461 440        
16 B1 899 858        
17 B1 865 826        
18 B1 735 702        
19 B1 602 575        
20 B1 190 182        
21 B2 3245 3099        
22 B2 3236 3090        
23 B2 3212 3066        
24 B2 1613 1540        
25 B2 1362 1300        
26 B2 1273 1216        
27 B2 1120 1069        
28 B2 973 929        
29 B2 807 770        
30 B2 336 321        

Unscaled Zero Point Vibrational Energy (zpe) 21312.3 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 20349.0 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 MP4/6-31G*
ABC
0.27197 0.12561 0.08592

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.761
C2 0.000 0.000 2.114
C3 0.000 1.182 -0.125
C4 0.000 -1.182 -0.125
C5 0.000 0.740 -1.413
C6 0.000 -0.740 -1.413
H7 0.000 0.929 2.685
H8 0.000 -0.929 2.685
H9 0.000 2.212 0.225
H10 0.000 -2.212 0.225
H11 0.000 1.356 -2.310
H12 0.000 -1.356 -2.310

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.35341.47671.47672.29582.29582.13692.13692.27622.27623.35663.3566
C21.35342.53152.53153.60353.60351.09021.09022.90932.90934.62704.6270
C31.47672.53152.36421.36202.31372.82113.51421.08773.41232.19223.3494
C41.47672.53152.36422.31371.36203.51422.82113.41231.08773.34942.1922
C52.29583.60351.36202.31371.47974.10224.42452.20203.37581.08842.2800
C62.29583.60352.31371.36201.47974.42454.10223.37582.20202.28001.0884
H72.13691.09022.82113.51424.10224.42451.85722.77533.98995.01335.4928
H82.13691.09023.51422.82114.42454.10221.85723.98992.77535.49285.0133
H92.27622.90931.08773.41232.20203.37582.77533.98994.42452.67514.3769
H102.27622.90933.41231.08773.37582.20203.98992.77534.42454.37692.6751
H113.35664.62702.19223.34941.08842.28005.01335.49282.67514.37692.7124
H123.35664.62703.34942.19222.28001.08845.49285.01334.37692.67512.7124

picture of Fulvene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H7 121.596 C1 C2 H8 121.596
C1 C3 C5 107.877 C1 C3 H9 124.452
C1 C4 C6 107.877 C1 C4 H10 124.452
C2 C1 C3 126.825 C2 C1 C4 126.825
C3 C1 C4 106.351 C3 C5 C6 108.948
C3 C5 H11 126.564 C4 C6 C5 108.948
C4 C6 H12 126.564 C5 C3 H9 127.671
C5 C6 H12 124.488 C6 C4 H10 127.671
C6 C5 H11 124.488 H7 C2 H8 116.808
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability