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: B3PW91/6-311+G(3df,2pd)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at B3PW91/6-311+G(3df,2pd)
 hartrees
Energy at 0K-117.896882
Energy at 298.15K-117.903235
HF Energy-117.896882
Nuclear repulsion energy76.010982
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 B3PW91/6-311+G(3df,2pd)
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' 3143 3143 0.00      
2 A1' 1517 1517 0.00      
3 A1' 1226 1226 0.00      
4 A1" 1152 1152 0.00      
5 A2' 1088 1088 0.00      
6 A2" 3234 3234 26.09      
7 A2" 857 857 0.70      
8 E' 3135 3135 21.61      
8 E' 3135 3135 21.61      
9 E' 1468 1468 1.46      
9 E' 1468 1468 1.46      
10 E' 1051 1051 9.12      
10 E' 1051 1051 9.12      
11 E' 901 901 20.23      
11 E' 901 901 20.23      
12 E" 3213 3213 0.00      
12 E" 3213 3213 0.00      
13 E" 1208 1208 0.00      
13 E" 1208 1208 0.00      
14 E" 739 739 0.00      
14 E" 739 739 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 17823.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 17823.3 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 B3PW91/6-311+G(3df,2pd)
ABC
0.67785 0.67785 0.42400

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311+G(3df,2pd)

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 1.453 0.908
H5 1.259 -0.727 0.908
H6 -1.259 -0.727 0.908
H7 0.000 1.453 -0.908
H8 1.259 -0.727 -0.908
H9 -1.259 -0.727 -0.908

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.49971.49971.08182.22372.22371.08182.22372.2237
C21.49971.49972.22371.08182.22372.22371.08182.2237
C31.49971.49972.22372.22371.08182.22372.22371.0818
H41.08182.22372.22372.51702.51701.81683.10433.1043
H52.22371.08182.22372.51702.51703.10431.81683.1043
H62.22372.22371.08182.51702.51703.10433.10431.8168
H71.08182.22372.22371.81683.10433.10432.51702.5170
H82.22371.08182.22373.10431.81683.10432.51702.5170
H92.22372.22371.08183.10433.10431.81682.51702.5170

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 118.049
C1 C2 H8 118.049 C1 C3 C2 60.000
C1 C3 H6 118.049 C1 C3 H9 118.049
C2 C1 C3 60.000 C2 C1 H4 118.049
C2 C1 H7 118.049 C2 C3 H6 118.049
C2 C3 H9 118.049 C3 C1 H4 118.049
C3 C1 H7 118.049 C3 C2 H5 118.049
C3 C2 H8 118.049 H4 C1 H7 114.227
H5 C2 H8 114.227 H6 C3 H9 114.227
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.088      
2 C -0.088      
3 C -0.088      
4 H 0.044      
5 H 0.044      
6 H 0.044      
7 H 0.044      
8 H 0.044      
9 H 0.044      


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 -20.635 0.000 0.000
y 0.000 -20.635 0.000
z 0.000 0.000 -18.369
Traceless
 xyz
x -1.133 0.000 0.000
y 0.000 -1.133 0.000
z 0.000 0.000 2.266
Polar
3z2-r24.531
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 5.510 0.000 0.000
y 0.000 5.510 0.000
z 0.000 0.000 4.822


<r2> (average value of r2) Å2
<r2> 43.533
(<r2>)1/2 6.598