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

using model chemistry: CCD/aug-cc-pVTZ

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

Conformer 2 (CS)

Jump to S1C1
Energy calculated at CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-115.708188
Energy at 298.15K-115.709950
HF Energy-115.235772
Nuclear repulsion energy58.090229
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 CCD/aug-cc-pVTZ
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' 3329 3186 1.07      
2 A' 3126 2992 37.84      
3 A' 1672 1600 1.34      
4 A' 1252 1198 6.74      
5 A' 995 952 16.20      
6 A' 939 898 3.37      
7 A' 621 594 68.64      
8 A" 3369 3224 524.59      
9 A" 2033 1946 2205.41      
10 A" 1018 974 11.13      
11 A" 1004 961 1.05      
12 A" 891 853 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 10124.3 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 9688.9 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 CCD/aug-cc-pVTZ
ABC
1.06773 0.89305 0.50022

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.036 0.886 0.000
H2 0.729 1.657 0.000
C3 -0.036 -0.418 0.656
C4 -0.036 -0.418 -0.656
H5 -0.042 -0.977 1.573
H6 -0.042 -0.977 -1.573

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6
C11.08611.45951.45952.43812.4381
H21.08612.30682.30683.16333.1633
C31.45952.30681.31151.07392.2975
C41.45952.30681.31152.29751.0739
H52.43813.16331.07392.29753.1454
H62.43813.16332.29751.07393.1454

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 63.302 C1 C3 H5 148.068
C1 C4 C3 63.302 C1 C4 H6 148.068
H2 C1 C3 129.379 H2 C1 C4 129.379
C3 C1 C4 53.397 C3 C4 H6 148.627
C4 C3 H5 148.627
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability