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: CCD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A'
Energy calculated at CCD/cc-pVDZ
 hartrees
Energy at 0K-231.397427
Energy at 298.15K-231.401908
HF Energy-230.570804
Nuclear repulsion energy187.411285
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 CCD/cc-pVDZ
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' 3180 3043 0.00      
2 A1' 1930 1847 0.00      
3 A1' 1485 1421 0.00      
4 A1' 796 761 0.00      
5 A1" 744 712 0.00      
6 A2' 3279 3137 0.00      
7 A2' 1104 1056 0.00      
8 A2' 498 477 0.00      
9 A2" 906 866 101.24      
10 A2" 205 196 6.10      
11 E' 3280 3138 7.52      
11 E' 3280 3138 7.52      
12 E' 3180 3042 8.83      
12 E' 3180 3042 8.83      
13 E' 1722 1647 7.38      
13 E' 1722 1647 7.38      
14 E' 1452 1389 8.28      
14 E' 1452 1389 8.28      
15 E' 1135 1086 3.64      
15 E' 1135 1086 3.64      
16 E' 801 766 7.49      
16 E' 801 766 7.49      
17 E' 220 210 0.00      
17 E' 220 210 0.00      
18 E" 898 860 0.00      
18 E" 898 860 0.00      
19 E" 764 731 0.00      
19 E" 764 731 0.00      
20 E" 336 322 0.00      
20 E" 336 322 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20851.2 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 19948.3 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 CCD/cc-pVDZ
ABC
0.13523 0.13523 0.06762

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/cc-pVDZ

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.845 0.000
C2 0.732 -0.423 0.000
C3 -0.732 -0.423 0.000
C4 0.000 2.189 0.000
C5 1.895 -1.094 0.000
C6 -1.895 -1.094 0.000
H7 -0.939 2.752 0.000
H8 0.939 2.752 0.000
H9 2.853 -0.562 0.000
H10 1.913 -2.190 0.000
H11 -1.913 -2.190 0.000
H12 -2.853 -0.562 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.46431.46431.34332.71212.71212.12532.12533.18133.58783.58783.1813
C21.46431.46432.71211.34332.71213.58783.18132.12532.12533.18133.5878
C31.46431.46432.71212.71211.34333.18133.58783.58783.18132.12532.1253
C41.34332.71212.71213.79103.79101.09531.09533.96324.77814.77813.9632
C52.71211.34332.71213.79103.79104.77813.96321.09531.09533.96324.7781
C62.71212.71211.34333.79103.79103.96324.77814.77813.96321.09531.0953
H72.12533.58783.18131.09534.77813.96321.87895.03645.70585.03643.8268
H82.12533.18133.58781.09533.96324.77811.87893.82685.03645.70585.0364
H93.18132.12533.58783.96321.09534.77815.03643.82681.87895.03645.7058
H103.58782.12533.18134.77811.09533.96325.70585.03641.87893.82685.0364
H113.58783.18132.12534.77813.96321.09535.03645.70585.03643.82681.8789
H123.18133.58782.12533.96324.77811.09533.82685.03645.70585.03641.8789

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 120.938 C1 C4 H8 120.938
C2 C1 C3 60.000 C2 C1 C4 150.000
C2 C3 C6 150.000 C2 C5 H9 120.938
C2 C5 H10 120.938 C3 C1 C4 150.000
C3 C2 C5 150.000 C3 C6 H11 120.938
C3 C6 H12 120.938 H7 C4 H8 118.125
H9 C5 H10 118.125 H11 C6 H12 118.125
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability