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All results from a given calculation for C3H6 (Cyclopropane)

using model chemistry: QCISD/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 QCISD/6-31G*
 hartrees
Energy at 0K-117.484128
Energy at 298.15K-117.490540
HF Energy-117.058106
Nuclear repulsion energy75.613318
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/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1' 3179 3027 0.00      
2 A1' 1578 1503 0.00      
3 A1' 1253 1193 0.00      
4 A1" 1189 1132 0.00      
5 A2' 1122 1068 0.00      
6 A2" 3263 3107 37.23      
7 A2" 879 837 0.26      
8 E' 3168 3017 23.58      
8 E' 3168 3017 23.58      
9 E' 1521 1448 0.61      
9 E' 1521 1448 0.61      
10 E' 1112 1059 8.25      
10 E' 1112 1059 8.25      
11 E' 922 878 18.44      
11 E' 922 878 18.44      
12 E" 3245 3090 0.00      
12 E" 3245 3090 0.00      
13 E" 1248 1189 0.00      
13 E" 1248 1189 0.00      
14 E" 766 730 0.00      
14 E" 766 730 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 18212.8 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 17344.0 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/6-31G*
ABC
0.67087 0.67087 0.41947

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.870 0.000
C2 0.754 -0.435 0.000
C3 -0.754 -0.435 0.000
H4 0.000 1.462 0.912
H5 1.266 -0.731 0.912
H6 -1.266 -0.731 0.912
H7 0.000 1.462 -0.912
H8 1.266 -0.731 -0.912
H9 -1.266 -0.731 -0.912

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.50711.50711.08772.23622.23621.08772.23622.2362
C21.50711.50712.23621.08772.23622.23621.08772.2362
C31.50711.50712.23622.23621.08772.23622.23621.0877
H41.08772.23622.23622.53282.53281.82483.12173.1217
H52.23621.08772.23622.53282.53283.12171.82483.1217
H62.23622.23621.08772.53282.53283.12173.12171.8248
H71.08772.23622.23621.82483.12173.12172.53282.5328
H82.23621.08772.23623.12171.82483.12172.53282.5328
H92.23622.23621.08773.12173.12171.82482.53282.5328

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 118.130
C1 C2 H8 118.130 C1 C3 C2 60.000
C1 C3 H6 118.130 C1 C3 H9 118.130
C2 C1 C3 60.000 C2 C1 H4 118.130
C2 C1 H7 118.130 C2 C3 H6 118.130
C2 C3 H9 118.130 C3 C1 H4 118.130
C3 C1 H7 118.130 C3 C2 H5 118.130
C3 C2 H8 118.130 H4 C1 H7 114.032
H5 C2 H8 114.032 H6 C3 H9 114.032
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability