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All results from a given calculation for C3H6 (Cyclopropane)

using model chemistry: CISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at CISD/6-31G*
 hartrees
Energy at 0K-117.438469
Energy at 298.15K-117.444928
HF Energy-117.058672
Nuclear repulsion energy75.956413
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 CISD/6-31G*
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' 3248 3007 0.00      
2 A1' 1614 1494 0.00      
3 A1' 1280 1185 0.00      
4 A1" 1216 1126 0.00      
5 A2' 1155 1069 0.00      
6 A2" 3333 3085 36.35      
7 A2" 896 829 0.23      
8 E' 3235 2995 23.83      
8 E' 3235 2995 23.83      
9 E' 1552 1437 0.64      
9 E' 1552 1437 0.64      
10 E' 1140 1055 7.33      
10 E' 1140 1055 7.33      
11 E' 945 875 20.72      
11 E' 945 875 20.72      
12 E" 3314 3068 0.00      
12 E" 3314 3068 0.00      
13 E" 1276 1181 0.00      
13 E" 1276 1181 0.00      
14 E" 781 723 0.00      
14 E" 781 723 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 18613.0 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 17231.9 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 CISD/6-31G*
ABC
0.67691 0.67691 0.42316

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-31G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.867 0.000
C2 0.750 -0.433 0.000
C3 -0.750 -0.433 0.000
H4 0.000 1.455 0.908
H5 1.260 -0.728 0.908
H6 -1.260 -0.728 0.908
H7 0.000 1.455 -0.908
H8 1.260 -0.728 -0.908
H9 -1.260 -0.728 -0.908

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.50081.50081.08222.22582.22581.08222.22582.2258
C21.50081.50082.22581.08222.22582.22581.08222.2258
C31.50081.50082.22582.22581.08222.22582.22581.0822
H41.08222.22582.22582.52082.52081.81593.10673.1067
H52.22581.08222.22582.52082.52083.10671.81593.1067
H62.22582.22581.08222.52082.52083.10673.10671.8159
H71.08222.22582.22581.81593.10673.10672.52082.5208
H82.22581.08222.22583.10671.81593.10672.52082.5208
H92.22582.22581.08223.10673.10671.81592.52082.5208

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 118.114
C1 C2 H8 118.114 C1 C3 C2 60.000
C1 C3 H6 118.114 C1 C3 H9 118.114
C2 C1 C3 60.000 C2 C1 H4 118.114
C2 C1 H7 118.114 C2 C3 H6 118.114
C2 C3 H9 118.114 C3 C1 H4 118.114
C3 C1 H7 118.114 C3 C2 H5 118.114
C3 C2 H8 118.114 H4 C1 H7 114.069
H5 C2 H8 114.069 H6 C3 H9 114.069
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability