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All results from a given calculation for C3H6 (Cyclopropane)

using model chemistry: B3PW91/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 B3PW91/CEP-31G*
 hartrees
Energy at 0K-20.576243
Energy at 298.15K-20.582511
HF Energy-20.576243
Nuclear repulsion energy42.588577
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/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' 3165 3030 0.00      
2 A1' 1531 1466 0.00      
3 A1' 1221 1169 0.00      
4 A1" 1136 1087 0.00      
5 A2' 1044 999 0.00      
6 A2" 3263 3123 68.30      
7 A2" 829 793 3.20      
8 E' 3154 3019 37.51      
8 E' 3154 3019 37.53      
9 E' 1450 1388 1.50      
9 E' 1450 1388 1.50      
10 E' 1030 986 11.17      
10 E' 1030 986 11.17      
11 E' 892 854 28.34      
11 E' 892 854 28.34      
12 E" 3239 3100 0.00      
12 E" 3239 3100 0.00      
13 E" 1182 1131 0.00      
13 E" 1182 1131 0.00      
14 E" 705 675 0.00      
14 E" 705 675 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 17744.2 cm-1
Scaled (by 0.9573) Zero Point Vibrational Energy (zpe) 16986.6 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/CEP-31G*
ABC
0.65553 0.65553 0.40955

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/CEP-31G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.883 0.000
C2 0.764 -0.441 0.000
C3 -0.764 -0.441 0.000
H4 0.000 1.472 0.922
H5 1.275 -0.736 0.922
H6 -1.275 -0.736 0.922
H7 0.000 1.472 -0.922
H8 1.275 -0.736 -0.922
H9 -1.275 -0.736 -0.922

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9
C11.52891.52891.09412.25752.25751.09412.25752.2575
C21.52891.52892.25751.09412.25752.25751.09412.2575
C31.52891.52892.25752.25751.09412.25752.25751.0941
H41.09412.25752.25752.55032.55031.84313.14663.1466
H52.25751.09412.25752.55032.55033.14661.84313.1466
H62.25752.25751.09412.55032.55033.14663.14661.8431
H71.09412.25752.25751.84313.14663.14662.55032.5503
H82.25751.09412.25753.14661.84313.14662.55032.5503
H92.25752.25751.09413.14663.14661.84312.55032.5503

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 117.826
C1 C2 H8 117.826 C1 C3 C2 60.000
C1 C3 H6 117.826 C1 C3 H9 117.826
C2 C1 C3 60.000 C2 C1 H4 117.827
C2 C1 H7 117.827 C2 C3 H6 117.826
C2 C3 H9 117.826 C3 C1 H4 117.827
C3 C1 H7 117.827 C3 C2 H5 117.826
C3 C2 H8 117.826 H4 C1 H7 114.767
H5 C2 H8 114.768 H6 C3 H9 114.768
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.363      
2 C -0.363      
3 C -0.363      
4 H 0.182      
5 H 0.182      
6 H 0.182      
7 H 0.182      
8 H 0.182      
9 H 0.182      


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 -20.345 0.000 0.000
y 0.000 -20.345 0.000
z 0.000 0.000 -17.553
Traceless
 xyz
x -1.396 0.000 0.000
y 0.000 -1.396 0.000
z 0.000 0.000 2.792
Polar
3z2-r25.584
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 4.904 0.000 0.000
y 0.000 4.903 0.000
z 0.000 0.000 4.008


<r2> (average value of r2) Å2
<r2> 39.580
(<r2>)1/2 6.291