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All results from a given calculation for C3H6 (Cyclopropane)

using model chemistry: HF/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at HF/CEP-121G*
 hartrees
Energy at 0K-19.922870
Energy at 298.15K 
HF Energy-19.922870
Nuclear repulsion energy43.158369
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 HF/CEP-121G*
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' 3293 2975 0.00 273.46 0.04 0.08
2 A1' 1656 1496 0.00 2.77 0.21 0.35
3 A1' 1273 1150 0.00 43.96 0.08 0.14
4 A1" 1255 1134 0.00 0.00 0.00 0.00
5 A2' 1195 1079 0.00 0.00 0.00 0.00
6 A2" 3384 3057 80.46 0.00 0.07 0.00
7 A2" 903 816 0.00 0.00 0.00 0.00
8 E' 3277 2961 45.64 23.07 0.75 0.86
8 E' 3277 2961 45.64 23.07 0.75 0.86
9 E' 1592 1438 0.05 6.12 0.75 0.86
9 E' 1592 1438 0.05 6.12 0.75 0.86
10 E' 1163 1051 2.79 1.67 0.75 0.86
10 E' 1163 1051 2.79 1.67 0.75 0.86
11 E' 938 847 31.82 18.20 0.75 0.86
11 E' 938 847 31.82 18.20 0.75 0.86
12 E" 3361 3037 0.00 102.87 0.75 0.86
12 E" 3361 3037 0.00 102.87 0.75 0.86
13 E" 1311 1184 0.00 5.61 0.75 0.86
13 E" 1311 1184 0.00 5.61 0.75 0.86
14 E" 788 712 0.00 0.82 0.75 0.86
14 E" 788 712 0.00 0.82 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18909.1 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 17082.5 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 HF/CEP-121G*
ABC
0.67303 0.67303 0.41960

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.872 0.000
C2 0.755 -0.436 0.000
C3 -0.755 -0.436 0.000
H4 0.000 1.456 0.906
H5 1.261 -0.728 0.906
H6 -1.261 -0.728 0.906
H7 0.000 1.456 -0.906
H8 1.261 -0.728 -0.906
H9 -1.261 -0.728 -0.906

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.50981.50981.07792.22932.22931.07792.22932.2293
C21.50981.50982.22931.07792.22932.22931.07792.2293
C31.50981.50982.22932.22931.07792.22932.22931.0779
H41.07792.22932.22932.52222.52221.81133.10523.1052
H52.22931.07792.22932.52222.52223.10521.81133.1052
H62.22932.22931.07792.52222.52223.10523.10521.8113
H71.07792.22932.22931.81133.10523.10522.52222.5222
H82.22931.07792.22933.10521.81133.10522.52222.5222
H92.22932.22931.07793.10523.10521.81132.52222.5222

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 118.011
C1 C2 H8 118.011 C1 C3 C2 60.000
C1 C3 H6 118.011 C1 C3 H9 118.011
C2 C1 C3 60.000 C2 C1 H4 118.011
C2 C1 H7 118.011 C2 C3 H6 118.011
C2 C3 H9 118.011 C3 C1 H4 118.011
C3 C1 H7 118.011 C3 C2 H5 118.011
C3 C2 H8 118.011 H4 C1 H7 114.320
H5 C2 H8 114.320 H6 C3 H9 114.320
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.345      
2 C -0.345      
3 C -0.345      
4 H 0.172      
5 H 0.172      
6 H 0.172      
7 H 0.172      
8 H 0.172      
9 H 0.172      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.719 0.000 0.000
y 0.000 -20.719 0.000
z 0.000 0.000 -18.376
Traceless
 xyz
x -1.172 0.000 0.000
y 0.000 -1.172 0.000
z 0.000 0.000 2.343
Polar
3z2-r24.686
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.871 0.000 0.000
y 0.000 4.871 0.000
z 0.000 0.000 4.509


<r2> (average value of r2) Å2
<r2> 39.215
(<r2>)1/2 6.262