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All results from a given calculation for C6H6 (Trimethylenecycopropane)

using model chemistry: MP4/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A'
Energy calculated at MP4/3-21G
 hartrees
Energy at 0K-229.850894
Energy at 298.15K-229.855135
HF Energy-229.253444
Nuclear repulsion energy186.758366
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 MP4/3-21G
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' 3113 3019        
2 A1' 1806 1752        
3 A1' 1527 1481        
4 A1' 728 706        
5 A1" 754 731        
6 A2' 3193 3097        
7 A2' 1125 1091        
8 A2' 515 500        
9 A2" 891 865        
10 A2" 187 182        
11 E' 3194 3098        
11 E' 3194 3097        
12 E' 3112 3018        
12 E' 3112 3018        
13 E' 1643 1593        
13 E' 1643 1593        
14 E' 1488 1443        
14 E' 1488 1443        
15 E' 1153 1118        
15 E' 1152 1118        
16 E' 743 721        
16 E' 743 720        
17 E' 226 219        
17 E' 225 218        
18 E" 883 857        
18 E" 883 857        
19 E" 748 725        
19 E" 748 725        
20 E" 274 266        
20 E" 274 266        

Unscaled Zero Point Vibrational Energy (zpe) 20382.4 cm-1
Scaled (by 0.9698) Zero Point Vibrational Energy (zpe) 19766.8 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 MP4/3-21G
ABC
0.13409 0.13409 0.06705

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/3-21G

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.855 0.000
C2 0.740 -0.427 0.000
C3 -0.740 -0.427 0.000
C4 0.000 2.196 0.000
C5 1.902 -1.098 0.000
C6 -1.902 -1.098 0.000
H7 -0.930 2.767 0.000
H8 0.930 2.767 0.000
H9 2.861 -0.578 0.000
H10 1.931 -2.188 0.000
H11 -1.931 -2.188 0.000
H12 -2.861 -0.578 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.48021.48021.34152.72582.72582.12622.12623.19973.60423.60423.1997
C21.48021.48022.72581.34152.72583.60423.19972.12622.12623.19973.6042
C31.48021.48022.72582.72581.34153.19973.60423.60423.19972.12622.1262
C41.34152.72582.72583.80383.80381.09081.09083.98534.79114.79113.9853
C52.72581.34152.72583.80383.80384.79113.98531.09081.09083.98534.7911
C62.72582.72581.34153.80383.80383.98534.79114.79113.98531.09081.0908
H72.12623.60423.19971.09084.79113.98531.85935.05555.72195.05553.8626
H82.12623.19973.60421.09083.98534.79111.85933.86265.05555.72195.0555
H93.19972.12623.60423.98531.09084.79115.05553.86261.85935.05555.7219
H103.60422.12623.19974.79111.09083.98535.72195.05551.85933.86265.0555
H113.60423.19972.12624.79113.98531.09085.05555.72195.05553.86261.8593
H123.19973.60422.12623.98534.79111.09083.86265.05555.72195.05551.8593

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 121.545 C1 C4 H8 121.545
C2 C1 C3 60.000 C2 C1 C4 150.000
C2 C3 C6 150.000 C2 C5 H9 121.545
C2 C5 H10 121.545 C3 C1 C4 150.000
C3 C2 C5 150.000 C3 C6 H11 121.545
C3 C6 H12 121.545 H7 C4 H8 116.909
H9 C5 H10 116.909 H11 C6 H12 116.909
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability