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 (Trimethylenecycopropane)

using model chemistry: QCISD(T)/aug-cc-pVTZ

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(T)/aug-cc-pVTZ
 hartrees
Energy at 0K-231.681094
Energy at 298.15K 
HF Energy-230.634478
Nuclear repulsion energy188.718061
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(T)/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at QCISD(T)/aug-cc-pVTZ
ABC
0.13701 0.13701 0.06850

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/aug-cc-pVTZ

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.837 0.000
C2 0.725 -0.419 0.000
C3 -0.725 -0.419 0.000
C4 0.000 2.176 0.000
C5 1.885 -1.088 0.000
C6 -1.885 -1.088 0.000
H7 -0.930 2.732 0.000
H8 0.930 2.732 0.000
H9 2.831 -0.560 0.000
H10 1.901 -2.172 0.000
H11 -1.901 -2.172 0.000
H12 -2.831 -0.560 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.44981.44981.33922.69412.69412.11102.11103.15723.55883.55883.1572
C21.44981.44982.69411.33922.69413.55883.15722.11102.11103.15723.5588
C31.44981.44982.69412.69411.33923.15723.55883.55883.15722.11102.1110
C41.33922.69412.69413.76943.76941.08361.08363.93764.74524.74523.9376
C52.69411.33922.69413.76943.76944.74523.93761.08361.08363.93764.7452
C62.69412.69411.33923.76943.76943.93764.74524.74523.93761.08361.0836
H72.11103.55883.15721.08364.74523.93761.86044.99885.66224.99883.8018
H82.11103.15723.55881.08363.93764.74521.86043.80184.99885.66224.9988
H93.15722.11103.55883.93761.08364.74524.99883.80181.86044.99885.6622
H103.55882.11103.15724.74521.08363.93765.66224.99881.86043.80184.9988
H113.55883.15722.11104.74523.93761.08364.99885.66224.99883.80181.8604
H123.15723.55882.11103.93764.74521.08363.80184.99885.66224.99881.8604

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 120.857 C1 C4 H8 120.857
C2 C1 C3 60.000 C2 C1 C4 150.000
C2 C3 C6 150.000 C2 C5 H9 120.857
C2 C5 H10 120.857 C3 C1 C4 150.000
C3 C2 C5 150.000 C3 C6 H11 120.857
C3 C6 H12 120.857 H7 C4 H8 118.286
H9 C5 H10 118.286 H11 C6 H12 118.286
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability