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All results from a given calculation for C3H6 (Cyclopropane)

using model chemistry: MP2/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 MP2/CEP-121G*
 hartrees
Energy at 0K-20.318352
Energy at 298.15K 
HF Energy-19.922350
Nuclear repulsion energy42.854233
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-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' 3180 3030 0.00 263.75 0.04 0.08
2 A1' 1551 1478 0.00 1.91 0.52 0.68
3 A1' 1221 1163 0.00 36.05 0.06 0.12
4 A1" 1187 1131 0.00 0.00 0.33 0.50
5 A2' 1084 1033 0.00 0.00 0.00 0.00
6 A2" 3288 3133 36.63 0.00 0.73 0.85
7 A2" 861 820 0.34 0.00 0.75 0.86
8 E' 3170 3020 23.18 21.79 0.75 0.86
8 E' 3170 3020 23.18 21.79 0.75 0.86
9 E' 1499 1428 0.81 6.31 0.75 0.86
9 E' 1499 1428 0.81 6.31 0.75 0.86
10 E' 1086 1035 13.47 0.60 0.75 0.86
10 E' 1086 1035 13.47 0.60 0.75 0.86
11 E' 897 855 23.12 14.92 0.75 0.86
11 E' 897 855 23.12 14.92 0.75 0.86
12 E" 3269 3115 0.00 88.93 0.75 0.86
12 E" 3269 3115 0.00 88.93 0.75 0.86
13 E" 1230 1172 0.00 5.43 0.75 0.86
13 E" 1230 1172 0.00 5.43 0.75 0.86
14 E" 753 718 0.00 0.65 0.75 0.86
14 E" 753 718 0.00 0.65 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18090.2 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 17236.3 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-121G*
ABC
0.66319 0.66319 0.41434

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.878 0.000
C2 0.761 -0.439 0.000
C3 -0.761 -0.439 0.000
H4 0.000 1.461 0.916
H5 1.265 -0.731 0.916
H6 -1.265 -0.731 0.916
H7 0.000 1.461 -0.916
H8 1.265 -0.731 -0.916
H9 -1.265 -0.731 -0.916

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.52141.52141.08592.24272.24271.08592.24272.2427
C21.52141.52142.24271.08592.24272.24271.08592.2427
C31.52141.52142.24272.24271.08592.24272.24271.0859
H41.08592.24272.24272.53092.53091.83253.12473.1247
H52.24271.08592.24272.53092.53093.12471.83253.1247
H62.24272.24271.08592.53092.53093.12473.12471.8325
H71.08592.24272.24271.83253.12473.12472.53092.5309
H82.24271.08592.24273.12471.83253.12472.53092.5309
H92.24272.24271.08593.12473.12471.83252.53092.5309

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 117.699
C1 C2 H8 117.699 C1 C3 C2 60.000
C1 C3 H6 117.699 C1 C3 H9 117.699
C2 C1 C3 60.000 C2 C1 H4 117.699
C2 C1 H7 117.699 C2 C3 H6 117.699
C2 C3 H9 117.699 C3 C1 H4 117.699
C3 C1 H7 117.699 C3 C2 H5 117.699
C3 C2 H8 117.699 H4 C1 H7 115.076
H5 C2 H8 115.076 H6 C3 H9 115.076
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability