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All results from a given calculation for C3H6 (Cyclopropane)

using model chemistry: QCISD(T)/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at QCISD(T)/SDD
 hartrees
Energy at 0K-117.321861
Energy at 298.15K-117.328222
HF Energy-117.013978
Nuclear repulsion energy73.811373
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 QCISD(T)/SDD
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' 3102 2958        
2 A1' 1518 1448        
3 A1' 1167 1113        
4 A1" 1166 1112        
5 A2' 1131 1079        
6 A2" 3203 3055        
7 A2" 872 831        
8 E' 3086 2943        
8 E' 3086 2943        
9 E' 1486 1417        
9 E' 1486 1417        
10 E' 1123 1071        
10 E' 1123 1071        
11 E' 833 795        
11 E' 833 795        
12 E" 3182 3034        
12 E" 3182 3034        
13 E" 1221 1164        
13 E" 1221 1164        
14 E" 780 744        
14 E" 779 743        

Unscaled Zero Point Vibrational Energy (zpe) 17788.3 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 16964.7 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 QCISD(T)/SDD
ABC
0.63769 0.63769 0.39610

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/SDD

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.899 0.000
C2 0.778 -0.449 0.000
C3 -0.778 -0.449 0.000
H4 0.000 1.493 0.923
H5 1.293 -0.746 0.923
H6 -1.293 -0.746 0.923
H7 0.000 1.493 -0.923
H8 1.293 -0.746 -0.923
H9 -1.293 -0.746 -0.923

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.55691.55691.09782.28702.28701.09782.28702.2870
C21.55691.55692.28701.09782.28702.28701.09782.2870
C31.55691.55692.28702.28701.09782.28702.28701.0978
H41.09782.28702.28702.58532.58531.84683.17713.1771
H52.28701.09782.28702.58532.58533.17711.84683.1771
H62.28702.28701.09782.58532.58533.17713.17711.8468
H71.09782.28702.28701.84683.17713.17712.58532.5853
H82.28701.09782.28703.17711.84683.17712.58532.5853
H92.28702.28701.09783.17713.17711.84682.58532.5853

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 117.930
C1 C2 H8 117.930 C1 C3 C2 60.000
C1 C3 H6 117.930 C1 C3 H9 117.930
C2 C1 C3 60.000 C2 C1 H4 117.930
C2 C1 H7 117.930 C2 C3 H6 117.930
C2 C3 H9 117.930 C3 C1 H4 117.930
C3 C1 H7 117.930 C3 C2 H5 117.930
C3 C2 H8 117.930 H4 C1 H7 114.518
H5 C2 H8 114.518 H6 C3 H9 114.518
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability