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: PBEPBEultrafine/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at PBEPBEultrafine/TZVP
 hartrees
Energy at 0K-117.764248
Energy at 298.15K 
HF Energy-117.764248
Nuclear repulsion energy75.477133
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 PBEPBEultrafine/TZVP
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' 3073 3038 0.00 306.29 0.02 0.05
2 A1' 1469 1453 0.00 1.82 0.75 0.85
3 A1' 1195 1181 0.00 33.94 0.06 0.12
4 A1" 1114 1101 0.00 0.00 0.75 0.86
5 A2' 1041 1029 0.00 0.00 0.75 0.86
6 A2" 3164 3128 27.51 0.00 0.75 0.86
7 A2" 839 829 0.77 0.00 0.75 0.86
8 E' 3067 3032 25.40 26.30 0.75 0.86
8 E' 3067 3032 25.40 26.30 0.75 0.86
9 E' 1425 1409 1.81 7.23 0.75 0.86
9 E' 1425 1409 1.81 7.23 0.75 0.86
10 E' 1011 999 14.72 0.15 0.75 0.86
10 E' 1011 999 14.72 0.15 0.75 0.86
11 E' 875 865 19.63 10.18 0.75 0.86
11 E' 875 865 19.63 10.18 0.75 0.86
12 E" 3143 3107 0.00 98.97 0.75 0.86
12 E" 3143 3107 0.00 98.97 0.75 0.86
13 E" 1174 1160 0.00 3.34 0.75 0.86
13 E" 1174 1160 0.00 3.34 0.75 0.86
14 E" 722 714 0.00 0.76 0.75 0.86
14 E" 722 714 0.00 0.76 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17364.7 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 17166.8 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 PBEPBEultrafine/TZVP
ABC
0.66842 0.66842 0.41836

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.872 0.000
C2 0.755 -0.436 0.000
C3 -0.755 -0.436 0.000
H4 0.000 1.463 0.916
H5 1.267 -0.732 0.916
H6 -1.267 -0.732 0.916
H7 0.000 1.463 -0.916
H8 1.267 -0.732 -0.916
H9 -1.267 -0.732 -0.916

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.50961.50961.09052.23952.23951.09052.23952.2395
C21.50961.50962.23951.09052.23952.23951.09052.2395
C31.50961.50962.23952.23951.09052.23952.23951.0905
H41.09052.23952.23952.53452.53451.83193.12723.1272
H52.23951.09052.23952.53452.53453.12721.83193.1272
H62.23952.23951.09052.53452.53453.12723.12721.8319
H71.09052.23952.23951.83193.12723.12722.53452.5345
H82.23951.09052.23953.12721.83193.12722.53452.5345
H92.23952.23951.09053.12723.12721.83192.53452.5345

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 118.032
C1 C2 H8 118.032 C1 C3 C2 60.000
C1 C3 H6 118.032 C1 C3 H9 118.032
C2 C1 C3 60.000 C2 C1 H4 118.032
C2 C1 H7 118.032 C2 C3 H6 118.032
C2 C3 H9 118.032 C3 C1 H4 118.032
C3 C1 H7 118.032 C3 C2 H5 118.032
C3 C2 H8 118.032 H4 C1 H7 114.269
H5 C2 H8 114.269 H6 C3 H9 114.269
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.287      
2 C -0.287      
3 C -0.287      
4 H 0.144      
5 H 0.144      
6 H 0.144      
7 H 0.144      
8 H 0.144      
9 H 0.144      


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 -20.929 0.000 0.000
y 0.000 -20.929 0.000
z 0.000 0.000 -18.496
Traceless
 xyz
x -1.216 0.000 0.000
y 0.000 -1.216 0.000
z 0.000 0.000 2.433
Polar
3z2-r24.866
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 5.447 0.000 0.000
y 0.000 5.447 0.000
z 0.000 0.000 4.959


<r2> (average value of r2) Å2
<r2> 44.119
(<r2>)1/2 6.642