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All results from a given calculation for C3H6 (Cyclopropane)

using model chemistry: QCISD(TQ)/6-31G(2df,p)

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(TQ)/6-31G(2df,p)
 hartrees
Energy at 0K-117.612621
Energy at 298.15K-117.618989
HF Energy-117.074220
Nuclear repulsion energy75.613299
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(TQ)/6-31G(2df,p)
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 3186        
2 A1' 1534 1534        
3 A1' 1223 1223        
4 A1" 1170 1170        
5 A2' 1095 1095        
6 A2" 3279 3279        
7 A2" 856 856        
8 E' 3176 3176        
8 E' 3175 3175        
9 E' 1484 1484        
9 E' 1483 1483        
10 E' 1072 1072        
10 E' 1072 1072        
11 E' 906 906        
11 E' 906 906        
12 E" 3260 3260        
12 E" 3260 3260        
13 E" 1222 1222        
13 E" 1222 1222        
14 E" 740 740        
14 E" 740 740        

Unscaled Zero Point Vibrational Energy (zpe) 18029.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18029.8 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(TQ)/6-31G(2df,p)
ABC
0.67026 0.67026 0.41883

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(TQ)/6-31G(2df,p)

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.872 0.000
C2 0.756 -0.436 0.000
C3 -0.756 -0.436 0.000
H4 0.000 1.458 0.912
H5 1.262 -0.729 0.912
H6 -1.262 -0.729 0.912
H7 0.000 1.458 -0.912
H8 1.262 -0.729 -0.912
H9 -1.262 -0.729 -0.912

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.51101.51101.08342.23362.23361.08342.23362.2336
C21.51101.51102.23361.08342.23362.23361.08342.2336
C31.51101.51102.23362.23361.08342.23362.23361.0834
H41.08342.23362.23362.52492.52491.82343.11453.1145
H52.23361.08342.23362.52492.52493.11451.82343.1145
H62.23362.23361.08342.52492.52493.11453.11451.8234
H71.08342.23362.23361.82343.11453.11452.52492.5249
H82.23361.08342.23363.11451.82343.11452.52492.5249
H92.23362.23361.08343.11453.11451.82342.52492.5249

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 117.898
C1 C2 H8 117.898 C1 C3 C2 60.000
C1 C3 H6 117.898 C1 C3 H9 117.898
C2 C1 C3 60.000 C2 C1 H4 117.898
C2 C1 H7 117.898 C2 C3 H6 117.898
C2 C3 H9 117.898 C3 C1 H4 117.898
C3 C1 H7 117.898 C3 C2 H5 117.898
C3 C2 H8 117.898 H4 C1 H7 114.594
H5 C2 H8 114.594 H6 C3 H9 114.594
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability