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All results from a given calculation for C3H6 (Cyclopropane)

using model chemistry: HF/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at HF/CEP-31G
 hartrees
Energy at 0K-19.860083
Energy at 298.15K-19.866597
Nuclear repulsion energy42.782963
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 HF/CEP-31G
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' 3342 3013 0.00      
2 A1' 1662 1498 0.00      
3 A1' 1289 1162 0.00      
4 A1" 1252 1129 0.00      
5 A2' 1242 1120 0.00      
6 A2" 3439 3100 125.02      
7 A2" 910 821 1.82      
8 E' 3321 2993 51.84      
8 E' 3321 2993 51.84      
9 E' 1599 1441 2.55      
9 E' 1599 1441 2.55      
10 E' 1189 1072 8.23      
10 E' 1189 1072 8.23      
11 E' 928 837 41.22      
11 E' 928 837 41.22      
12 E" 3413 3076 0.00      
12 E" 3413 3076 0.00      
13 E" 1309 1180 0.00      
13 E" 1309 1180 0.00      
14 E" 812 732 0.00      
14 E" 812 732 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19138.8 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 17251.7 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 HF/CEP-31G
ABC
0.65937 0.65937 0.40901

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.884 0.000
C2 0.766 -0.442 0.000
C3 -0.766 -0.442 0.000
H4 0.000 1.471 0.906
H5 1.274 -0.735 0.906
H6 -1.274 -0.735 0.906
H7 0.000 1.471 -0.906
H8 1.274 -0.735 -0.906
H9 -1.274 -0.735 -0.906

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.53111.53111.07912.25062.25061.07912.25062.2506
C21.53111.53112.25061.07912.25062.25061.07912.2506
C31.53111.53112.25062.25061.07912.25062.25061.0791
H41.07912.25062.25062.54782.54781.81113.12593.1259
H52.25061.07912.25062.54782.54783.12591.81113.1259
H62.25062.25061.07912.54782.54783.12593.12591.8111
H71.07912.25062.25061.81113.12593.12592.54782.5478
H82.25061.07912.25063.12591.81113.12592.54782.5478
H92.25062.25061.07913.12593.12591.81112.54782.5478

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 118.102
C1 C2 H8 118.102 C1 C3 C2 60.000
C1 C3 H6 118.102 C1 C3 H9 118.102
C2 C1 C3 60.000 C2 C1 H4 118.102
C2 C1 H7 118.102 C2 C3 H6 118.102
C2 C3 H9 118.102 C3 C1 H4 118.102
C3 C1 H7 118.102 C3 C2 H5 118.102
C3 C2 H8 118.102 H4 C1 H7 114.098
H5 C2 H8 114.098 H6 C3 H9 114.098
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.280      
2 C -0.280      
3 C -0.280      
4 H 0.140      
5 H 0.140      
6 H 0.140      
7 H 0.140      
8 H 0.140      
9 H 0.140      


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 -20.919 0.000 0.000
y 0.000 -20.919 0.000
z 0.000 0.000 -18.293
Traceless
 xyz
x -1.313 0.000 0.000
y 0.000 -1.313 0.000
z 0.000 0.000 2.626
Polar
3z2-r25.253
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 4.703 0.000 0.000
y 0.000 4.703 0.000
z 0.000 0.000 3.781


<r2> (average value of r2) Å2
<r2> 39.798
(<r2>)1/2 6.309