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All results from a given calculation for C6H6 (Trimethylenecycopropane)

using model chemistry: QCISD/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A'
Energy calculated at QCISD/3-21G
 hartrees
Energy at 0K-229.835946
Energy at 298.15K-229.840275
HF Energy-229.254682
Nuclear repulsion energy187.104147
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 QCISD/3-21G
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' 3118 3022 0.00      
2 A1' 1849 1792 0.00      
3 A1' 1531 1484 0.00      
4 A1' 737 714 0.00      
5 A1" 756 733 0.00      
6 A2' 3195 3096 0.00      
7 A2' 1133 1098 0.00      
8 A2' 519 503 0.00      
9 A2" 917 889 130.20      
10 A2" 190 184 7.84      
11 E' 3195 3097 12.16      
11 E' 3195 3097 12.16      
12 E' 3117 3021 11.01      
12 E' 3117 3021 11.01      
13 E' 1675 1623 6.68      
13 E' 1675 1623 6.68      
14 E' 1494 1448 8.90      
14 E' 1494 1448 8.90      
15 E' 1160 1124 10.45      
15 E' 1160 1124 10.45      
16 E' 748 725 10.03      
16 E' 748 725 10.03      
17 E' 227 220 0.18      
17 E' 227 220 0.18      
18 E" 909 881 0.00      
18 E" 909 881 0.00      
19 E" 756 733 0.00      
19 E" 756 733 0.00      
20 E" 289 280 0.00      
20 E" 289 280 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20542.2 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 19909.5 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 QCISD/3-21G
ABC
0.13462 0.13462 0.06731

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.854 0.000
C2 0.740 -0.427 0.000
C3 -0.740 -0.427 0.000
C4 0.000 2.191 0.000
C5 1.898 -1.096 0.000
C6 -1.898 -1.096 0.000
H7 -0.929 2.762 0.000
H8 0.929 2.762 0.000
H9 2.856 -0.576 0.000
H10 1.927 -2.185 0.000
H11 -1.927 -2.185 0.000
H12 -2.856 -0.576 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.47991.47991.33672.72082.72082.12142.12143.19453.59923.59923.1945
C21.47991.47992.72081.33672.72083.59923.19452.12142.12143.19453.5992
C31.47991.47992.72082.72081.33673.19453.59923.59923.19452.12142.1214
C41.33672.72082.72083.79503.79501.09021.09023.97704.78194.78193.9770
C52.72081.33672.72083.79503.79504.78193.97701.09021.09023.97704.7819
C62.72082.72081.33673.79503.79503.97704.78194.78193.97701.09021.0902
H72.12143.59923.19451.09024.78193.97701.85785.04675.71235.04673.8544
H82.12143.19453.59921.09023.97704.78191.85783.85445.04675.71235.0467
H93.19452.12143.59923.97701.09024.78195.04673.85441.85785.04675.7123
H103.59922.12143.19454.78191.09023.97705.71235.04671.85783.85445.0467
H113.59923.19452.12144.78193.97701.09025.04675.71235.04673.85441.8578
H123.19453.59922.12143.97704.78191.09023.85445.04675.71235.04671.8578

picture of Trimethylenecycopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 60.000 C1 C2 C5 150.000
C1 C3 C2 60.000 C1 C3 C6 150.000
C1 C4 H7 121.561 C1 C4 H8 121.561
C2 C1 C3 60.000 C2 C1 C4 150.000
C2 C3 C6 150.000 C2 C5 H9 121.561
C2 C5 H10 121.561 C3 C1 C4 150.000
C3 C2 C5 150.000 C3 C6 H11 121.561
C3 C6 H12 121.561 H7 C4 H8 116.879
H9 C5 H10 116.879 H11 C6 H12 116.879
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability