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All results from a given calculation for C3H6 (Cyclopropane)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-116.671689
Energy at 298.15K 
HF Energy-116.400256
Nuclear repulsion energy75.017044
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 MP2/3-21G*
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' 3214 3057 0.00 183.24 0.05 0.10
2 A1' 1585 1508 0.00 9.23 0.70 0.82
3 A1' 1153 1097 0.00 22.53 0.07 0.12
4 A1" 1216 1157 0.00 0.00 0.75 0.86
5 A2' 1170 1113 0.00 0.00 0.75 0.86
6 A2" 3311 3150 20.91 0.00 0.00 0.00
7 A2" 888 845 0.67 0.00 0.00 0.00
8 E' 3204 3048 14.06 13.51 0.75 0.86
8 E' 3204 3048 14.06 13.51 0.75 0.86
9 E' 1564 1488 2.02 8.64 0.75 0.86
9 E' 1564 1488 2.02 8.64 0.75 0.86
10 E' 1148 1092 19.53 0.19 0.75 0.86
10 E' 1148 1092 19.53 0.19 0.75 0.86
11 E' 856 815 14.77 16.00 0.75 0.86
11 E' 856 815 14.77 16.00 0.75 0.86
12 E" 3288 3128 0.00 73.90 0.75 0.86
12 E" 3288 3128 0.00 73.90 0.75 0.86
13 E" 1259 1198 0.00 13.33 0.75 0.86
13 E" 1259 1198 0.00 13.33 0.75 0.86
14 E" 794 755 0.00 3.55 0.75 0.86
14 E" 794 755 0.00 3.55 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18380.7 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 17485.6 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 MP2/3-21G*
ABC
0.65884 0.65884 0.41023

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.884 0.000
C2 0.765 -0.442 0.000
C3 -0.765 -0.442 0.000
H4 0.000 1.466 0.913
H5 1.269 -0.733 0.913
H6 -1.269 -0.733 0.913
H7 0.000 1.466 -0.913
H8 1.269 -0.733 -0.913
H9 -1.269 -0.733 -0.913

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.53031.53031.08282.24892.24891.08282.24892.2489
C21.53031.53032.24891.08282.24892.24891.08282.2489
C31.53031.53032.24892.24891.08282.24892.24891.0828
H41.08282.24892.24892.53872.53871.82593.12713.1271
H52.24891.08282.24892.53872.53873.12711.82593.1271
H62.24892.24891.08282.53872.53873.12713.12711.8259
H71.08282.24892.24891.82593.12713.12712.53872.5387
H82.24891.08282.24893.12711.82593.12712.53872.5387
H92.24892.24891.08283.12713.12711.82592.53872.5387

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 117.751
C1 C2 H8 117.751 C1 C3 C2 60.000
C1 C3 H6 117.751 C1 C3 H9 117.751
C2 C1 C3 60.000 C2 C1 H4 117.751
C2 C1 H7 117.751 C2 C3 H6 117.751
C2 C3 H9 117.751 C3 C1 H4 117.751
C3 C1 H7 117.751 C3 C2 H5 117.751
C3 C2 H8 117.751 H4 C1 H7 114.950
H5 C2 H8 114.950 H6 C3 H9 114.950
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability