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All results from a given calculation for C6H6 (Trimethylenecycopropane)

using model chemistry: QCISD/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 QCISD/6-31G
 hartrees
Energy at 0K-231.043188
Energy at 298.15K-231.047319
HF Energy-230.459902
Nuclear repulsion energy186.299633
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/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' 3118 3005 0.00      
2 A1' 1883 1815 0.00      
3 A1' 1510 1455 0.00      
4 A1' 761 733 0.00      
5 A1" 741 714 0.00      
6 A2' 3201 3084 0.00      
7 A2' 1123 1082 0.00      
8 A2' 519 500 0.00      
9 A2" 896 863 131.54      
10 A2" 172 166 5.37      
11 E' 3201 3085 20.98      
11 E' 3201 3085 20.98      
12 E' 3117 3003 17.43      
12 E' 3117 3003 17.43      
13 E' 1680 1619 7.11      
13 E' 1680 1619 7.11      
14 E' 1474 1420 8.54      
14 E' 1474 1420 8.54      
15 E' 1150 1108 8.42      
15 E' 1150 1108 8.42      
16 E' 765 737 9.89      
16 E' 765 737 9.89      
17 E' 225 217 0.06      
17 E' 225 217 0.06      
18 E" 887 854 0.00      
18 E" 887 854 0.00      
19 E" 731 704 0.00      
19 E" 731 704 0.00      
20 E" 241 232 0.00      
20 E" 241 232 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20431.4 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 19687.7 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/6-31G
ABC
0.13341 0.13341 0.06671

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

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 2.202 0.000
C5 1.907 -1.101 0.000
C6 -1.907 -1.101 0.000
H7 -0.931 2.776 0.000
H8 0.931 2.776 0.000
H9 2.869 -0.582 0.000
H10 1.938 -2.194 0.000
H11 -1.938 -2.194 0.000
H12 -2.869 -0.582 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.47961.47961.34812.73162.73162.13502.13503.20853.61233.61233.2085
C21.47961.47972.73161.34812.73163.61233.20852.13502.13503.20853.6123
C31.47961.47972.73162.73161.34813.20853.61233.61233.20852.13502.1350
C41.34812.73162.73163.81463.81461.09321.09323.99794.80474.80473.9979
C52.73161.34812.73163.81463.81464.80473.99791.09321.09323.99794.8047
C62.73162.73161.34813.81463.81463.99794.80474.80473.99791.09321.0932
H72.13503.61233.20851.09324.80473.99791.86185.07075.73845.07073.8767
H82.13503.20853.61231.09323.99794.80471.86183.87675.07075.73845.0707
H93.20852.13503.61233.99791.09324.80475.07073.87671.86185.07075.7384
H103.61232.13503.20854.80471.09323.99795.73845.07071.86183.87675.0707
H113.61233.20852.13504.80473.99791.09325.07075.73845.07073.87671.8618
H123.20853.61232.13503.99794.80471.09323.87675.07075.73845.07071.8618

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 121.625 C1 C4 H8 121.625
C2 C1 C3 60.000 C2 C1 C4 150.000
C2 C3 C6 150.000 C2 C5 H9 121.625
C2 C5 H10 121.625 C3 C1 C4 150.000
C3 C2 C5 150.000 C3 C6 H11 121.625
C3 C6 H12 121.625 H7 C4 H8 116.749
H9 C5 H10 116.749 H11 C6 H12 116.749
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability