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All results from a given calculation for C3H6 (Cyclopropane)

using model chemistry: MP4/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at MP4/CEP-31G
 hartrees
Energy at 0K-20.142105
Energy at 298.15K-20.148448
HF Energy-19.855089
Nuclear repulsion energy41.772661
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/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' 3114 2939        
2 A1' 1523 1437        
3 A1' 1177 1111        
4 A1" 1161 1096        
5 A2' 1108 1046        
6 A2" 3221 3040        
7 A2" 857 809        
8 E' 3097 2923        
8 E' 3097 2923        
9 E' 1474 1392        
9 E' 1474 1391        
10 E' 1108 1046        
10 E' 1108 1046        
11 E' 840 793        
11 E' 840 793        
12 E" 3198 3018        
12 E" 3198 3018        
13 E" 1208 1140        
13 E" 1208 1140        
14 E" 765 722        
14 E" 764 722        

Unscaled Zero Point Vibrational Energy (zpe) 17769.5 cm-1
Scaled (by 0.9438) Zero Point Vibrational Energy (zpe) 16770.9 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/CEP-31G
ABC
0.62789 0.62789 0.38999

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/CEP-31G

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.907 0.000
C2 0.785 -0.453 0.000
C3 -0.785 -0.453 0.000
H4 0.000 1.502 0.930
H5 1.301 -0.751 0.930
H6 -1.301 -0.751 0.930
H7 0.000 1.502 -0.930
H8 1.301 -0.751 -0.930
H9 -1.301 -0.751 -0.930

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.57021.57021.10472.30322.30321.10472.30322.3032
C21.57021.57022.30321.10472.30322.30321.10472.3032
C31.57021.57022.30322.30321.10472.30322.30321.1047
H41.10472.30322.30322.60142.60141.86093.19853.1985
H52.30321.10472.30322.60142.60143.19851.86093.1985
H62.30322.30321.10472.60142.60143.19853.19851.8609
H71.10472.30322.30321.86093.19853.19852.60142.6014
H82.30321.10472.30323.19851.86093.19852.60142.6014
H92.30322.30321.10473.19853.19851.86092.60142.6014

picture of Cyclopropane 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 H5 117.825
C1 C2 H8 117.825 C1 C3 C2 60.000
C1 C3 H6 117.825 C1 C3 H9 117.825
C2 C1 C3 60.000 C2 C1 H4 117.825
C2 C1 H7 117.825 C2 C3 H6 117.825
C2 C3 H9 117.825 C3 C1 H4 117.825
C3 C1 H7 117.825 C3 C2 H5 117.825
C3 C2 H8 117.825 H4 C1 H7 114.772
H5 C2 H8 114.772 H6 C3 H9 114.772
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability