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All results from a given calculation for C6H6 (Trimethylenecycopropane)

using model chemistry: CISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A'
Energy calculated at CISD/6-31G*
 hartrees
Energy at 0K-231.205655
Energy at 298.15K-231.210369
HF Energy-230.554972
Nuclear repulsion energy190.114415
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 CISD/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' 3281 3038 0.00      
2 A1' 2019 1869 0.00      
3 A1' 1557 1441 0.00      
4 A1' 835 774 0.00      
5 A1" 794 735 0.00      
6 A2' 3368 3118 0.00      
7 A2' 1157 1071 0.00      
8 A2' 530 490 0.00      
9 A2" 971 899 138.17      
10 A2" 219 203 5.40      
11 E' 3368 3119 9.04      
11 E' 3368 3119 9.04      
12 E' 3280 3037 10.71      
12 E' 3280 3037 10.71      
13 E' 1811 1677 7.39      
13 E' 1811 1677 7.39      
14 E' 1523 1410 10.59      
14 E' 1523 1410 10.59      
15 E' 1191 1103 7.97      
15 E' 1191 1103 7.97      
16 E' 843 780 9.57      
16 E' 843 780 9.57      
17 E' 233 216 0.01      
17 E' 233 216 0.01      
18 E" 964 892 0.00      
18 E" 964 892 0.00      
19 E" 814 753 0.00      
19 E" 814 753 0.00      
20 E" 354 328 0.00      
20 E" 354 328 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 21745.9 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 20132.3 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 CISD/6-31G*
ABC
0.13914 0.13914 0.06957

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.834 0.000
C2 0.722 -0.417 0.000
C3 -0.722 -0.417 0.000
C4 0.000 2.157 0.000
C5 1.868 -1.078 0.000
C6 -1.868 -1.078 0.000
H7 -0.923 2.717 0.000
H8 0.923 2.717 0.000
H9 2.815 -0.560 0.000
H10 1.892 -2.158 0.000
H11 -1.892 -2.158 0.000
H12 -2.815 -0.560 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.44451.44451.32292.67322.67322.09742.09743.14083.53993.53993.1408
C21.44451.44452.67321.32292.67323.53993.14082.09742.09743.14083.5399
C31.44451.44452.67322.67321.32293.14083.53993.53993.14082.09742.0974
C41.32292.67322.67323.73573.73571.07971.07973.91184.71134.71133.9118
C52.67321.32292.67323.73573.73574.71133.91181.07971.07973.91184.7113
C62.67322.67321.32293.73573.73573.91184.71134.71133.91181.07971.0797
H72.09743.53993.14081.07974.71133.91181.84544.97075.62954.97073.7841
H82.09743.14083.53991.07973.91184.71131.84543.78414.97075.62954.9707
H93.14082.09743.53993.91181.07974.71134.97073.78411.84544.97075.6295
H103.53992.09743.14084.71131.07973.91185.62954.97071.84543.78414.9707
H113.53993.14082.09744.71133.91181.07974.97075.62954.97073.78411.8454
H123.14083.53992.09743.91184.71131.07973.78414.97075.62954.97071.8454

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 121.283 C1 C4 H8 121.283
C2 C1 C3 60.000 C2 C1 C4 150.000
C2 C3 C6 150.000 C2 C5 H9 121.283
C2 C5 H10 121.283 C3 C1 C4 150.000
C3 C2 C5 150.000 C3 C6 H11 121.283
C3 C6 H12 121.283 H7 C4 H8 117.433
H9 C5 H10 117.433 H11 C6 H12 117.433
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability