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All results from a given calculation for C3H6 (Cyclopropane)

using model chemistry: MP2/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 MP2/CEP-31G
 hartrees
Energy at 0K-20.100732
Energy at 298.15K 
HF Energy-19.856354
Nuclear repulsion energy41.904038
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 MP2/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' 3160 3054 0.00 270.70 0.05 0.10
2 A1' 1541 1489 0.00 14.01 0.39 0.56
3 A1' 1194 1154 0.00 41.72 0.09 0.16
4 A1" 1179 1139 0.00 0.00 0.75 0.86
5 A2' 1123 1085 0.00 0.00 0.00 0.00
6 A2" 3276 3165 88.44 0.00 0.00 0.00
7 A2" 872 842 2.87 0.00 0.00 0.00
8 E' 3145 3039 36.99 18.14 0.75 0.86
8 E' 3145 3039 36.99 18.14 0.75 0.86
9 E' 1495 1445 1.73 4.38 0.75 0.86
9 E' 1495 1445 1.73 4.38 0.75 0.86
10 E' 1115 1078 16.74 1.15 0.75 0.86
10 E' 1115 1078 16.74 1.15 0.75 0.86
11 E' 851 822 26.87 20.36 0.75 0.86
11 E' 851 822 26.87 20.36 0.75 0.86
12 E" 3253 3143 0.00 72.70 0.75 0.86
12 E" 3253 3143 0.00 72.70 0.75 0.86
13 E" 1224 1182 0.00 10.13 0.75 0.86
13 E" 1224 1182 0.00 10.13 0.75 0.86
14 E" 775 749 0.00 1.08 0.75 0.86
14 E" 775 749 0.00 1.08 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18029.0 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 17421.5 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 MP2/CEP-31G
ABC
0.63178 0.63178 0.39235

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.904 0.000
C2 0.783 -0.452 0.000
C3 -0.783 -0.452 0.000
H4 0.000 1.497 0.927
H5 1.296 -0.748 0.927
H6 -1.296 -0.748 0.927
H7 0.000 1.497 -0.927
H8 1.296 -0.748 -0.927
H9 -1.296 -0.748 -0.927

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.56581.56581.10052.29562.29561.10052.29562.2956
C21.56581.56582.29561.10052.29562.29561.10052.2956
C31.56581.56582.29562.29561.10052.29562.29561.1005
H41.10052.29562.29562.59222.59221.85473.18743.1874
H52.29561.10052.29562.59222.59223.18741.85473.1874
H62.29562.29561.10052.59222.59223.18743.18741.8547
H71.10052.29562.29561.85473.18743.18742.59222.5922
H82.29561.10052.29563.18741.85473.18742.59222.5922
H92.29562.29561.10053.18743.18741.85472.59222.5922

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 117.796
C1 C2 H8 117.796 C1 C3 C2 60.000
C1 C3 H6 117.796 C1 C3 H9 117.796
C2 C1 C3 60.000 C2 C1 H4 117.796
C2 C1 H7 117.796 C2 C3 H6 117.796
C2 C3 H9 117.796 C3 C1 H4 117.796
C3 C1 H7 117.796 C3 C2 H5 117.796
C3 C2 H8 117.796 H4 C1 H7 114.841
H5 C2 H8 114.841 H6 C3 H9 114.841
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability