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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-36.954428
Energy at 298.15K-36.958450
HF Energy-36.243248
Nuclear repulsion energy93.653739
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' 3187 3026 0.00      
2 A1' 1903 1807 0.00      
3 A1' 1483 1408 0.00      
4 A1' 784 744 0.00      
5 A1" 728 691 0.00      
6 A2' 3282 3116 0.00      
7 A2' 1018 967 0.00      
8 A2' 418 397 0.00      
9 A2" 772 733 227.18      
10 A2" 204 194 6.26      
11 E' 3283 3117 10.53      
11 E' 3283 3117 10.53      
12 E' 3185 3024 10.87      
12 E' 3185 3024 10.87      
13 E' 1674 1590 5.21      
13 E' 1674 1590 5.21      
14 E' 1442 1369 7.58      
14 E' 1442 1369 7.58      
15 E' 1090 1034 3.51      
15 E' 1090 1034 3.51      
16 E' 782 743 4.54      
16 E' 782 743 4.54      
17 E' 204 194 0.15      
17 E' 204 194 0.15      
18 E" 782 743 0.00      
18 E" 782 743 0.00      
19 E" 699 664 0.00      
19 E" 699 664 0.00      
20 E" 305 290 0.00      
20 E" 305 290 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20335.4 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 19306.4 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
0.13138 0.13138 0.06569

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 0.851 0.000
C2 0.737 -0.425 0.000
C3 -0.737 -0.425 0.000
C4 0.000 2.226 0.000
C5 1.928 -1.113 0.000
C6 -1.928 -1.113 0.000
H7 -0.943 2.783 0.000
H8 0.943 2.783 0.000
H9 2.882 -0.574 0.000
H10 1.938 -2.208 0.000
H11 -1.938 -2.208 0.000
H12 -2.882 -0.574 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.47401.47401.37482.75182.75182.14972.14973.21483.62163.62163.2148
C21.47401.47402.75181.37482.75183.62163.21482.14972.14973.21483.6216
C31.47401.47402.75182.75181.37483.21483.62163.62163.21482.14972.1497
C41.37482.75182.75183.85513.85511.09551.09554.01794.83914.83914.0179
C52.75181.37482.75183.85513.85514.83914.01791.09551.09554.01794.8391
C62.75182.75181.37483.85513.85514.01794.83914.83914.01791.09551.0955
H72.14973.62163.21481.09554.83914.01791.88675.08915.76305.08913.8763
H82.14973.21483.62161.09554.01794.83911.88673.87635.08915.76305.0891
H93.21482.14973.62164.01791.09554.83915.08913.87631.88675.08915.7630
H103.62162.14973.21484.83911.09554.01795.76305.08911.88673.87635.0891
H113.62163.21482.14974.83914.01791.09555.08915.76305.08913.87631.8867
H123.21483.62162.14974.01794.83911.09553.87635.08915.76305.08911.8867

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 120.555 C1 C4 H8 120.555
C2 C1 C3 60.000 C2 C1 C4 150.000
C2 C3 C6 150.000 C2 C5 H9 120.555
C2 C5 H10 120.555 C3 C1 C4 150.000
C3 C2 C5 150.000 C3 C6 H11 120.555
C3 C6 H12 120.555 H7 C4 H8 118.891
H9 C5 H10 118.891 H11 C6 H12 118.891
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability