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All results from a given calculation for C3H3 (cyclopropenyl radical)

using model chemistry: ROMP2/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes CS 2A'

Conformer 1 (D3H)

Jump to S1C2
Vibrational Frequencies calculated at ROMP2/cc-pVDZ
Rotational Constants (cm-1) from geometry optimized at ROMP2/cc-pVDZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/cc-pVDZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at ROMP2/cc-pVDZ
 hartrees
Energy at 0K-115.574021
Energy at 298.15K-115.575643
HF Energy-115.197986
Nuclear repulsion energy57.274273
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 ROMP2/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3337 3337        
2 A' 3124 3124        
3 A' 1624 1624        
4 A' 1259 1259        
5 A' 1011 1011        
6 A' 921 921        
7 A' 599 599        
8 A" 3295 3295        
9 A" 1051 1051        
10 A" 980 980        
11 A" 853 853        
12 A" 770 770        

Unscaled Zero Point Vibrational Energy (zpe) 9411.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9411.4 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 ROMP2/cc-pVDZ
ABC
1.02992 0.87441 0.48721

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.038 0.896 0.000
H2 0.757 1.661 0.000
C3 -0.038 -0.421 0.668
C4 -0.038 -0.421 -0.668
H5 -0.038 -0.993 1.595
H6 -0.038 -0.993 -1.595

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6
C11.10271.47711.47712.47232.4723
H21.10272.32652.32653.19663.1966
C31.47712.32651.33661.08872.3342
C41.47712.32651.33662.33421.0887
H52.47233.19661.08872.33423.1895
H62.47233.19662.33421.08873.1895

picture of cyclopropenyl radical state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 63.101 C1 C3 H5 148.584
C1 C4 C3 63.101 C1 C4 H6 148.584
H2 C1 C3 128.206 H2 C1 C4 128.206
C3 C1 C4 53.798 C3 C4 H6 148.315
C4 C3 H5 148.315
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROMP2/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.049      
2 H 0.051      
3 C -0.057      
4 C -0.057      
5 H 0.056      
6 H 0.056      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 33.873
(<r2>)1/2 5.820