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All results from a given calculation for C3H6 (Cyclopropane)

using model chemistry: CISD/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 CISD/CEP-31G
 hartrees
Energy at 0K-20.112099
Energy at 298.15K-20.118499
HF Energy-19.857448
Nuclear repulsion energy42.050069
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/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' 3186 2937 0.00      
2 A1' 1561 1439 0.00      
3 A1' 1216 1121 0.00      
4 A1" 1185 1092 0.00      
5 A2' 1146 1056 0.00      
6 A2" 3283 3026 107.81      
7 A2" 871 803 2.20      
8 E' 3161 2914 43.21      
8 E' 3161 2914 43.21      
9 E' 1506 1388 1.91      
9 E' 1506 1388 1.91      
10 E' 1131 1042 12.21      
10 E' 1131 1042 12.21      
11 E' 872 804 29.37      
11 E' 872 804 29.37      
12 E" 3259 3005 0.00      
12 E" 3259 3005 0.00      
13 E" 1235 1138 0.00      
13 E" 1235 1138 0.00      
14 E" 779 718 0.00      
14 E" 779 718 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 18166.3 cm-1
Scaled (by 0.9218) Zero Point Vibrational Energy (zpe) 16745.7 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/CEP-31G
ABC
0.63667 0.63667 0.39540

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.900 0.000
C2 0.779 -0.450 0.000
C3 -0.779 -0.450 0.000
H4 0.000 1.493 0.924
H5 1.293 -0.747 0.924
H6 -1.293 -0.747 0.924
H7 0.000 1.493 -0.924
H8 1.293 -0.747 -0.924
H9 -1.293 -0.747 -0.924

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.55861.55861.09792.28832.28831.09792.28832.2883
C21.55861.55862.28831.09792.28832.28831.09792.2883
C31.55861.55862.28832.28831.09792.28832.28831.0979
H41.09792.28832.28832.58632.58631.84763.17843.1784
H52.28831.09792.28832.58632.58633.17841.84763.1784
H62.28832.28831.09792.58632.58633.17843.17841.8476
H71.09792.28832.28831.84763.17843.17842.58632.5863
H82.28831.09792.28833.17841.84763.17842.58632.5863
H92.28832.28831.09793.17843.17841.84762.58632.5863

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 117.904
C1 C2 H8 117.904 C1 C3 C2 60.000
C1 C3 H6 117.904 C1 C3 H9 117.904
C2 C1 C3 60.000 C2 C1 H4 117.904
C2 C1 H7 117.904 C2 C3 H6 117.904
C2 C3 H9 117.904 C3 C1 H4 117.904
C3 C1 H7 117.904 C3 C2 H5 117.904
C3 C2 H8 117.904 H4 C1 H7 114.579
H5 C2 H8 114.579 H6 C3 H9 114.579
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability