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

using model chemistry: ROMP2/TZVP

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

Conformer 2 (CS)

Jump to S1C1
Energy calculated at ROMP2/TZVP
 hartrees
Energy at 0K-115.620420
Energy at 298.15K-115.622057
HF Energy-115.225909
Nuclear repulsion energy58.070125
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/TZVP
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' 3360 3360        
2 A' 3145 3145        
3 A' 1642 1642        
4 A' 1262 1262        
5 A' 1021 1021        
6 A' 950 950        
7 A' 589 589        
8 A" 3317 3317        
9 A" 1070 1070        
10 A" 1009 1009        
11 A" 859 859        
12 A" 771 771        

Unscaled Zero Point Vibrational Energy (zpe) 9497.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9497.6 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 ROMP2/TZVP
ABC
1.06071 0.89776 0.50030

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.035 0.883 0.000
H2 0.736 1.650 0.000
C3 -0.035 -0.416 0.659
C4 -0.035 -0.416 -0.659
H5 -0.054 -0.977 1.575
H6 -0.054 -0.977 -1.575

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6
C11.08691.45711.45712.43732.4373
H21.08692.30172.30173.16303.1630
C31.45712.30171.31701.07412.3025
C41.45712.30171.31702.30251.0741
H52.43733.16301.07412.30253.1493
H62.43733.16302.30251.07413.1493

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 63.133 C1 C3 H5 148.306
C1 C4 C3 63.133 C1 C4 H6 148.306
H2 C1 C3 128.997 H2 C1 C4 128.997
C3 C1 C4 53.734 C3 C4 H6 148.530
C4 C3 H5 148.530
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROMP2/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.161      
2 H 0.091      
3 C -0.120      
4 C -0.120      
5 H 0.155      
6 H 0.155      


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> 33.346
(<r2>)1/2 5.775