return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C3H6 (Cyclopropane)

using model chemistry: MP2=FULL/6-31G**

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=FULL/6-31G**
 hartrees
Energy at 0K-117.512502
Energy at 298.15K 
HF Energy-117.068998
Nuclear repulsion energy76.066711
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=FULL/6-31G**
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' 3249 3036 0.00 214.69 0.05 0.09
2 A1' 1591 1486 0.00 5.18 0.75 0.86
3 A1' 1267 1184 0.00 26.51 0.09 0.16
4 A1" 1207 1128 0.00 0.00 0.75 0.86
5 A2' 1124 1050 0.00 0.00 0.00 0.00
6 A2" 3350 3131 25.45 0.00 0.00 0.00
7 A2" 888 829 0.17 0.00 0.75 0.86
8 E' 3240 3027 17.51 16.41 0.75 0.86
8 E' 3240 3027 17.51 16.41 0.75 0.86
9 E' 1534 1434 0.27 8.17 0.75 0.86
9 E' 1534 1434 0.27 8.17 0.75 0.86
10 E' 1116 1043 8.71 0.00 0.75 0.86
10 E' 1116 1043 8.71 0.00 0.75 0.86
11 E' 936 875 17.18 13.69 0.75 0.86
11 E' 936 875 17.18 13.69 0.75 0.86
12 E" 3333 3114 0.00 80.32 0.75 0.86
12 E" 3333 3114 0.00 80.32 0.75 0.86
13 E" 1256 1174 0.00 10.62 0.75 0.86
13 E" 1256 1174 0.00 10.62 0.75 0.86
14 E" 768 718 0.00 2.37 0.75 0.86
14 E" 768 718 0.00 2.37 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18521.4 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 17306.4 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=FULL/6-31G**
ABC
0.67860 0.67860 0.42429

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.866 0.000
C2 0.750 -0.433 0.000
C3 -0.750 -0.433 0.000
H4 0.000 1.450 0.907
H5 1.256 -0.725 0.907
H6 -1.256 -0.725 0.907
H7 0.000 1.450 -0.907
H8 1.256 -0.725 -0.907
H9 -1.256 -0.725 -0.907

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.50031.50031.07902.22112.22111.07902.22112.2211
C21.50031.50032.22111.07902.22112.22111.07902.2211
C31.50031.50032.22112.22111.07902.22112.22111.0790
H41.07902.22112.22112.51212.51211.81433.09883.0988
H52.22111.07902.22112.51212.51213.09881.81433.0988
H62.22112.22111.07902.51212.51213.09883.09881.8143
H71.07902.22112.22111.81433.09883.09882.51212.5121
H82.22111.07902.22113.09881.81433.09882.51212.5121
H92.22112.22111.07903.09883.09881.81432.51212.5121

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 117.962
C1 C2 H8 117.962 C1 C3 C2 60.000
C1 C3 H6 117.962 C1 C3 H9 117.962
C2 C1 C3 60.000 C2 C1 H4 117.962
C2 C1 H7 117.962 C2 C3 H6 117.962
C2 C3 H9 117.962 C3 C1 H4 117.962
C3 C1 H7 117.962 C3 C2 H5 117.962
C3 C2 H8 117.962 H4 C1 H7 114.439
H5 C2 H8 114.439 H6 C3 H9 114.439
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability