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: BLYP/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at BLYP/6-311+G(3df,2p)
 hartrees
Energy at 0K-117.861955
Energy at 298.15K 
HF Energy-117.861955
Nuclear repulsion energy75.311486
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 BLYP/6-311+G(3df,2p)
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' 3052 3035 0.00 310.78 0.02 0.05
2 A1' 1475 1467 0.00 1.18 0.32 0.48
3 A1' 1169 1163 0.00 44.26 0.06 0.12
4 A1" 1121 1114 0.00 0.00 0.75 0.86
5 A2' 1056 1051 0.00 0.00 0.75 0.86
6 A2" 3137 3120 35.67 0.00 0.75 0.86
7 A2" 843 838 0.52 0.00 0.75 0.86
8 E' 3046 3029 27.81 27.47 0.75 0.86
8 E' 3046 3029 27.81 27.47 0.75 0.86
9 E' 1442 1434 0.53 5.45 0.75 0.86
9 E' 1442 1434 0.53 5.45 0.75 0.86
10 E' 1016 1011 10.85 0.84 0.75 0.86
10 E' 1016 1011 10.85 0.85 0.75 0.86
11 E' 838 833 15.87 8.50 0.75 0.86
11 E' 838 833 15.87 8.49 0.75 0.86
12 E" 3115 3098 0.00 102.88 0.75 0.86
12 E" 3115 3098 0.00 102.89 0.75 0.86
13 E" 1180 1173 0.00 1.33 0.75 0.86
13 E" 1180 1173 0.00 1.32 0.75 0.86
14 E" 724 720 0.00 0.45 0.75 0.86
14 E" 724 720 0.00 0.45 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17287.9 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 17192.8 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 BLYP/6-311+G(3df,2p)
ABC
0.66511 0.66511 0.41496

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.876 0.000
C2 0.758 -0.438 0.000
C3 -0.758 -0.438 0.000
H4 0.000 1.467 0.912
H5 1.271 -0.734 0.912
H6 -1.271 -0.734 0.912
H7 0.000 1.467 -0.912
H8 1.271 -0.734 -0.912
H9 -1.271 -0.734 -0.912

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.51681.51681.08732.24422.24421.08732.24422.2442
C21.51681.51682.24421.08732.24422.24421.08732.2442
C31.51681.51682.24422.24421.08732.24422.24421.0873
H41.08732.24422.24422.54112.54111.82473.12843.1284
H52.24421.08732.24422.54112.54113.12841.82473.1284
H62.24422.24421.08732.54112.54113.12843.12841.8247
H71.08732.24422.24421.82473.12843.12842.54112.5411
H82.24421.08732.24423.12841.82473.12842.54112.5411
H92.24422.24421.08733.12843.12841.82472.54112.5411

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 118.103
C1 C2 H8 118.103 C1 C3 C2 60.000
C1 C3 H6 118.103 C1 C3 H9 118.103
C2 C1 C3 60.000 C2 C1 H4 118.103
C2 C1 H7 118.103 C2 C3 H6 118.103
C2 C3 H9 118.103 C3 C1 H4 118.103
C3 C1 H7 118.103 C3 C2 H5 118.103
C3 C2 H8 118.103 H4 C1 H7 114.096
H5 C2 H8 114.096 H6 C3 H9 114.096
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.295      
2 C -0.295      
3 C -0.295      
4 H 0.148      
5 H 0.148      
6 H 0.148      
7 H 0.148      
8 H 0.148      
9 H 0.148      


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 -21.135 0.000 0.000
y 0.000 -21.135 0.000
z 0.000 0.000 -18.917
Traceless
 xyz
x -1.109 0.000 0.000
y 0.000 -1.109 0.000
z 0.000 0.000 2.218
Polar
3z2-r24.436
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 5.797 0.000 0.000
y 0.000 5.797 0.000
z 0.000 0.000 5.012


<r2> (average value of r2) Å2
<r2> 44.452
(<r2>)1/2 6.667