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All results from a given calculation for C6H6 (Trimethylenecycopropane)

using model chemistry: MP2/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A'
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-231.484505
Energy at 298.15K-231.489050
HF Energy-230.580990
Nuclear repulsion energy189.537222
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 MP2/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1' 3205 3027 0.00      
2 A1' 1906 1801 0.00      
3 A1' 1487 1405 0.00      
4 A1' 795 751 0.00      
5 A1" 766 723 0.00      
6 A2' 3304 3121 0.00      
7 A2' 1109 1047 0.00      
8 A2' 504 476 0.00      
9 A2" 905 855 108.34      
10 A2" 216 204 4.88      
11 E' 3305 3121 2.03      
11 E' 3305 3121 2.03      
12 E' 3204 3027 1.40      
12 E' 3204 3027 1.40      
13 E' 1685 1592 8.43      
13 E' 1685 1592 8.43      
14 E' 1456 1375 8.80      
14 E' 1456 1375 8.80      
15 E' 1137 1074 1.97      
15 E' 1137 1074 1.97      
16 E' 811 766 3.89      
16 E' 811 766 3.89      
17 E' 223 210 0.01      
17 E' 223 210 0.01      
18 E" 900 850 0.00      
18 E" 900 850 0.00      
19 E" 781 738 0.00      
19 E" 781 738 0.00      
20 E" 346 327 0.00      
20 E" 346 327 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20946.9 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 19784.3 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 MP2/6-31G(2df,p)
ABC
0.13828 0.13828 0.06914

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.832 0.000
C2 0.721 -0.416 0.000
C3 -0.721 -0.416 0.000
C4 0.000 2.166 0.000
C5 1.875 -1.083 0.000
C6 -1.875 -1.083 0.000
H7 -0.928 2.723 0.000
H8 0.928 2.723 0.000
H9 2.822 -0.558 0.000
H10 1.894 -2.165 0.000
H11 -1.894 -2.165 0.000
H12 -2.822 -0.558 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.44121.44121.33362.68032.68032.10672.10673.14613.54593.54593.1461
C21.44121.44122.68031.33362.68033.54593.14612.10672.10673.14613.5459
C31.44121.44122.68032.68031.33363.14613.54593.54593.14612.10672.1067
C41.33362.68032.68033.75103.75101.08281.08283.92224.72724.72723.9222
C52.68031.33362.68033.75103.75104.72723.92221.08281.08283.92224.7272
C62.68032.68031.33363.75103.75103.92224.72724.72723.92221.08281.0828
H72.10673.54593.14611.08284.72723.92221.85634.98325.64504.98323.7886
H82.10673.14613.54591.08283.92224.72721.85633.78864.98325.64504.9832
H93.14612.10673.54593.92221.08284.72724.98323.78861.85634.98325.6450
H103.54592.10673.14614.72721.08283.92225.64504.98321.85633.78864.9832
H113.54593.14612.10674.72723.92221.08284.98325.64504.98323.78861.8563
H123.14613.54592.10673.92224.72721.08283.78864.98325.64504.98321.8563

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 120.996 C1 C4 H8 120.996
C2 C1 C3 60.000 C2 C1 C4 150.000
C2 C3 C6 150.000 C2 C5 H9 120.996
C2 C5 H10 120.996 C3 C1 C4 150.000
C3 C2 C5 150.000 C3 C6 H11 120.996
C3 C6 H12 120.996 H7 C4 H8 118.008
H9 C5 H10 118.008 H11 C6 H12 118.008
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability