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: CCD/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at CCD/LANL2DZ
 hartrees
Energy at 0K-117.312644
Energy at 298.15K-117.319027
HF Energy-117.014013
Nuclear repulsion energy73.935764
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 CCD/LANL2DZ
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' 3121 2943 0.00      
2 A1' 1528 1441 0.00      
3 A1' 1185 1117 0.00      
4 A1" 1171 1105 0.00      
5 A2' 1148 1083 0.00      
6 A2" 3220 3037 60.68      
7 A2" 875 826 2.57      
8 E' 3105 2928 30.29      
8 E' 3105 2928 30.29      
9 E' 1493 1408 2.98      
9 E' 1493 1408 2.98      
10 E' 1131 1067 15.88      
10 E' 1131 1067 15.88      
11 E' 852 804 23.12      
11 E' 852 804 23.12      
12 E" 3199 3017 0.00      
12 E" 3199 3017 0.00      
13 E" 1227 1157 0.00      
13 E" 1227 1157 0.00      
14 E" 784 739 0.00      
14 E" 784 739 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 17914.4 cm-1
Scaled (by 0.9431) Zero Point Vibrational Energy (zpe) 16895.1 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 CCD/LANL2DZ
ABC
0.64003 0.64003 0.39758

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/LANL2DZ

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.897 0.000
C2 0.777 -0.448 0.000
C3 -0.777 -0.448 0.000
H4 0.000 1.491 0.922
H5 1.292 -0.746 0.922
H6 -1.292 -0.746 0.922
H7 0.000 1.491 -0.922
H8 1.292 -0.746 -0.922
H9 -1.292 -0.746 -0.922

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.55331.55331.09692.28372.28371.09692.28372.2837
C21.55331.55332.28371.09692.28372.28371.09692.2837
C31.55331.55332.28372.28371.09692.28372.28371.0969
H41.09692.28372.28372.58302.58301.84363.17343.1734
H52.28371.09692.28372.58302.58303.17341.84363.1734
H62.28372.28371.09692.58302.58303.17343.17341.8436
H71.09692.28372.28371.84363.17343.17342.58302.5830
H82.28371.09692.28373.17341.84363.17342.58302.5830
H92.28372.28371.09693.17343.17341.84362.58302.5830

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 117.994
C1 C2 H8 117.994 C1 C3 C2 60.000
C1 C3 H6 117.994 C1 C3 H9 117.994
C2 C1 C3 60.000 C2 C1 H4 117.994
C2 C1 H7 117.994 C2 C3 H6 117.994
C2 C3 H9 117.994 C3 C1 H4 117.994
C3 C1 H7 117.994 C3 C2 H5 117.994
C3 C2 H8 117.994 H4 C1 H7 114.361
H5 C2 H8 114.361 H6 C3 H9 114.361
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability