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All results from a given calculation for C3H6 (Cyclopropane)

using model chemistry: MP4/CEP-121G*

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-121G*
 hartrees
Energy at 0K-20.368182
Energy at 298.15K-20.374530
HF Energy-19.921751
Nuclear repulsion energy42.691079
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-121G*
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' 3131 2955        
2 A1' 1536 1449        
3 A1' 1201 1133        
4 A1" 1174 1108        
5 A2' 1075 1015        
6 A2" 3232 3051        
7 A2" 846 799        
8 E' 3119 2944        
8 E' 3119 2944        
9 E' 1483 1400        
9 E' 1483 1400        
10 E' 1083 1022        
10 E' 1083 1022        
11 E' 881 832        
11 E' 881 832        
12 E" 3212 3032        
12 E" 3212 3032        
13 E" 1218 1150        
13 E" 1218 1150        
14 E" 745 703        
14 E" 744 702        

Unscaled Zero Point Vibrational Energy (zpe) 17838.9 cm-1
Scaled (by 0.9438) Zero Point Vibrational Energy (zpe) 16836.4 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 MP4/CEP-121G*
ABC
0.65803 0.65803 0.41091

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/CEP-121G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.882 0.000
C2 0.764 -0.441 0.000
C3 -0.764 -0.441 0.000
H4 0.000 1.468 0.919
H5 1.271 -0.734 0.919
H6 -1.271 -0.734 0.919
H7 0.000 1.468 -0.919
H8 1.271 -0.734 -0.919
H9 -1.271 -0.734 -0.919

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.52741.52741.08992.25192.25191.08992.25192.2519
C21.52741.52742.25191.08992.25192.25191.08992.2519
C31.52741.52742.25192.25191.08992.25192.25191.0899
H41.08992.25192.25192.54252.54251.83783.13723.1372
H52.25191.08992.25192.54252.54253.13721.83783.1372
H62.25192.25191.08992.54252.54253.13723.13721.8378
H71.08992.25192.25191.83783.13723.13722.54252.5425
H82.25191.08992.25193.13721.83783.13722.54252.5425
H92.25192.25191.08993.13723.13721.83782.54252.5425

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 117.756
C1 C2 H8 117.756 C1 C3 C2 60.000
C1 C3 H6 117.756 C1 C3 H9 117.756
C2 C1 C3 60.000 C2 C1 H4 117.756
C2 C1 H7 117.756 C2 C3 H6 117.756
C2 C3 H9 117.756 C3 C1 H4 117.756
C3 C1 H7 117.756 C3 C2 H5 117.756
C3 C2 H8 117.756 H4 C1 H7 114.939
H5 C2 H8 114.940 H6 C3 H9 114.940
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability