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: HSEh1PBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at HSEh1PBE/6-31+G**
 hartrees
Energy at 0K-117.768565
Energy at 298.15K 
HF Energy-117.768565
Nuclear repulsion energy75.823829
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 HSEh1PBE/6-31+G**
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' 3169 3026 0.00 279.61 0.03 0.06
2 A1' 1532 1463 0.00 1.58 0.24 0.39
3 A1' 1242 1186 0.00 40.93 0.08 0.15
4 A1" 1152 1100 0.00 0.00 0.75 0.86
5 A2' 1087 1038 0.00 0.00 0.75 0.86
6 A2" 3263 3115 26.91 0.00 0.75 0.86
7 A2" 863 824 1.07 0.00 0.75 0.86
8 E' 3161 3018 23.69 25.64 0.75 0.86
8 E' 3161 3018 23.69 25.64 0.75 0.86
9 E' 1473 1406 1.36 7.13 0.75 0.86
9 E' 1473 1406 1.36 7.13 0.75 0.86
10 E' 1059 1012 12.80 0.83 0.75 0.86
10 E' 1059 1012 12.80 0.83 0.75 0.86
11 E' 916 874 26.36 10.87 0.75 0.86
11 E' 916 874 26.36 10.87 0.75 0.86
12 E" 3243 3097 0.00 96.88 0.75 0.86
12 E" 3243 3097 0.00 96.89 0.75 0.86
13 E" 1213 1159 0.00 3.29 0.75 0.86
13 E" 1213 1159 0.00 3.29 0.75 0.86
14 E" 744 710 0.00 0.56 0.75 0.86
14 E" 744 710 0.00 0.56 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17963.0 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 17151.1 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 HSEh1PBE/6-31+G**
ABC
0.67463 0.67463 0.42222

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31+G**

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.867 0.000
C2 0.751 -0.434 0.000
C3 -0.751 -0.434 0.000
H4 0.000 1.457 0.912
H5 1.262 -0.729 0.912
H6 -1.262 -0.729 0.912
H7 0.000 1.457 -0.912
H8 1.262 -0.729 -0.912
H9 -1.262 -0.729 -0.912

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.50231.50231.08582.22962.22961.08582.22962.2296
C21.50231.50242.22961.08582.22962.22961.08582.2296
C31.50231.50242.22962.22961.08582.22962.22961.0858
H41.08582.22962.22962.52412.52411.82313.11363.1136
H52.22961.08582.22962.52412.52413.11361.82313.1136
H62.22962.22961.08582.52412.52413.11363.11361.8231
H71.08582.22962.22961.82313.11363.11362.52412.5241
H82.22961.08582.22963.11361.82313.11362.52412.5241
H92.22962.22961.08583.11363.11361.82312.52412.5241

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 118.066
C1 C2 H8 118.066 C1 C3 C2 60.000
C1 C3 H6 118.066 C1 C3 H9 118.066
C2 C1 C3 60.000 C2 C1 H4 118.066
C2 C1 H7 118.066 C2 C3 H6 118.066
C2 C3 H9 118.066 C3 C1 H4 118.066
C3 C1 H7 118.066 C3 C2 H5 118.066
C3 C2 H8 118.066 H4 C1 H7 114.186
H5 C2 H8 114.186 H6 C3 H9 114.186
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.334      
2 C -0.334      
3 C -0.334      
4 H 0.167      
5 H 0.167      
6 H 0.167      
7 H 0.167      
8 H 0.167      
9 H 0.167      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.801 0.000 0.000
y 0.000 -20.801 0.000
z 0.000 0.000 -18.335
Traceless
 xyz
x -1.233 0.000 0.000
y 0.000 -1.233 0.000
z 0.000 0.000 2.466
Polar
3z2-r24.933
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.147 0.000 0.000
y 0.000 5.147 0.000
z 0.000 0.000 4.571


<r2> (average value of r2) Å2
<r2> 43.748
(<r2>)1/2 6.614