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All results from a given calculation for C6H6 (Trimethylenecycopropane)

using model chemistry: MP2/CEP-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 MP2/CEP-31G
 hartrees
Energy at 0K-36.616357
Energy at 298.15K-36.620049
HF Energy-36.142349
Nuclear repulsion energy92.357115
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 MP2/CEP-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' 3139 3034 0.00      
2 A1' 1854 1792 0.00      
3 A1' 1491 1441 0.00      
4 A1' 742 717 0.00      
5 A1" 725 700 0.00      
6 A2' 3238 3129 0.00      
7 A2' 1048 1013 0.00      
8 A2' 449 434 0.00      
9 A2" 772 746 242.29      
10 A2" 175 169 6.38      
11 E' 3241 3131 31.20      
11 E' 3241 3131 31.20      
12 E' 3136 3030 28.88      
12 E' 3136 3030 28.88      
13 E' 1636 1581 2.96      
13 E' 1636 1581 2.96      
14 E' 1451 1402 7.93      
14 E' 1451 1402 7.93      
15 E' 1107 1070 6.08      
15 E' 1107 1070 6.08      
16 E' 748 722 5.92      
16 E' 748 722 5.92      
17 E' 209 202 0.23      
17 E' 209 202 0.23      
18 E" 780 753 0.00      
18 E" 780 753 0.00      
19 E" 679 656 0.00      
19 E" 679 656 0.00      
20 E" 195 189 0.00      
20 E" 195 189 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19997.5 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 19323.6 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 MP2/CEP-31G
ABC
0.12741 0.12741 0.06371

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.870 0.000
C2 0.754 -0.435 0.000
C3 -0.754 -0.435 0.000
C4 0.000 2.259 0.000
C5 1.956 -1.130 0.000
C6 -1.956 -1.130 0.000
H7 -0.945 2.823 0.000
H8 0.945 2.823 0.000
H9 2.918 -0.593 0.000
H10 1.972 -2.230 0.000
H11 -1.972 -2.230 0.000
H12 -2.918 -0.593 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.50751.50751.38882.79782.79782.16972.16973.26413.67483.67483.2641
C21.50751.50752.79781.38882.79783.67483.26412.16972.16973.26413.6748
C31.50751.50752.79782.79781.38883.26413.67483.67483.26412.16972.1697
C41.38882.79782.79783.91303.91301.10091.10094.08014.90374.90374.0801
C52.79781.38882.79783.91303.91304.90374.08011.10091.10094.08014.9037
C62.79782.79781.38883.91303.91304.08014.90374.90374.08011.10091.1009
H72.16973.67483.26411.10094.90374.08011.89085.15695.83545.15693.9447
H82.16973.26413.67481.10094.08014.90371.89083.94475.15695.83545.1569
H93.26412.16973.67484.08011.10094.90375.15693.94471.89085.15695.8354
H103.67482.16973.26414.90371.10094.08015.83545.15691.89083.94475.1569
H113.67483.26412.16974.90374.08011.10095.15695.83545.15693.94471.8908
H123.26413.67482.16974.08014.90371.10093.94475.15695.83545.15691.8908

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 120.825 C1 C4 H8 120.825
C2 C1 C3 60.000 C2 C1 C4 150.000
C2 C3 C6 150.000 C2 C5 H9 120.825
C2 C5 H10 120.825 C3 C1 C4 150.000
C3 C2 C5 150.000 C3 C6 H11 120.825
C3 C6 H12 120.825 H7 C4 H8 118.350
H9 C5 H10 118.350 H11 C6 H12 118.350
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability