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All results from a given calculation for C6H6 (Trimethylenecycopropane)

using model chemistry: CCD/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 CCD/3-21G*
 hartrees
Energy at 0K-229.828531
Energy at 298.15K-229.832859
HF Energy-229.255329
Nuclear repulsion energy187.331596
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/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' 3129 2993 0.00      
2 A1' 1864 1783 0.00      
3 A1' 1535 1468 0.00      
4 A1' 743 711 0.00      
5 A1" 759 726 0.00      
6 A2' 3206 3066 0.00      
7 A2' 1137 1087 0.00      
8 A2' 523 500 0.00      
9 A2" 922 882 132.87      
10 A2" 190 182 7.79      
11 E' 3206 3067 12.42      
11 E' 3206 3067 12.42      
12 E' 3128 2992 10.96      
12 E' 3128 2992 10.96      
13 E' 1689 1616 6.40      
13 E' 1689 1616 6.40      
14 E' 1500 1435 7.94      
14 E' 1500 1435 7.94      
15 E' 1164 1114 8.07      
15 E' 1164 1114 8.07      
16 E' 755 722 7.26      
16 E' 755 722 7.26      
17 E' 229 219 0.24      
17 E' 229 219 0.24      
18 E" 914 874 0.00      
18 E" 914 874 0.00      
19 E" 759 726 0.00      
19 E" 759 726 0.00      
20 E" 286 274 0.00      
20 E" 286 274 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20633.3 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 19735.8 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/3-21G*
ABC
0.13497 0.13497 0.06748

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.853 0.000
C2 0.739 -0.427 0.000
C3 -0.739 -0.427 0.000
C4 0.000 2.188 0.000
C5 1.895 -1.094 0.000
C6 -1.895 -1.094 0.000
H7 -0.928 2.759 0.000
H8 0.928 2.759 0.000
H9 2.853 -0.575 0.000
H10 1.925 -2.183 0.000
H11 -1.925 -2.183 0.000
H12 -2.853 -0.575 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.47831.47831.33462.71722.71722.11932.11933.19113.59553.59553.1911
C21.47831.47832.71721.33462.71723.59553.19112.11932.11933.19113.5955
C31.47831.47832.71722.71721.33463.19113.59553.59553.19112.11932.1193
C41.33462.71722.71723.78983.78981.08961.08963.97224.77644.77643.9722
C52.71721.33462.71723.78983.78984.77643.97221.08961.08963.97224.7764
C62.71722.71721.33463.78983.78983.97224.77644.77643.97221.08961.0896
H72.11933.59553.19111.08964.77643.97221.85655.04155.70655.04153.8500
H82.11933.19113.59551.08963.97224.77641.85653.85005.04155.70655.0415
H93.19112.11933.59553.97221.08964.77645.04153.85001.85655.04155.7065
H103.59552.11933.19114.77641.08963.97225.70655.04151.85653.85005.0415
H113.59553.19112.11934.77643.97221.08965.04155.70655.04153.85001.8565
H123.19113.59552.11933.97224.77641.08963.85005.04155.70655.04151.8565

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 121.584 C1 C4 H8 121.584
C2 C1 C3 60.000 C2 C1 C4 150.000
C2 C3 C6 150.000 C2 C5 H9 121.584
C2 C5 H10 121.584 C3 C1 C4 150.000
C3 C2 C5 150.000 C3 C6 H11 121.584
C3 C6 H12 121.584 H7 C4 H8 116.832
H9 C5 H10 116.832 H11 C6 H12 116.832
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability