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

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

Conformer 2 (CS)

Jump to S1C1
Energy calculated at CCD/TZVP
 hartrees
Energy at 0K-115.639979
Energy at 298.15K-115.641733
HF Energy-115.229708
Nuclear repulsion energy58.114327
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/TZVP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3361 3187 0.63      
2 A' 3141 2977 45.25      
3 A' 1690 1602 1.12      
4 A' 1260 1195 8.99      
5 A' 1026 973 11.97      
6 A' 956 906 5.14      
7 A' 600 569 80.51      
8 A" 3522 3339 3312.56      
9 A" 2446 2319 5410.48      
10 A" 1032 978 13.79      
11 A" 1016 963 0.59      
12 A" 863 818 0.15      

Unscaled Zero Point Vibrational Energy (zpe) 10456.0 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 9912.3 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/TZVP
ABC
1.06951 0.89306 0.50069

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.035 0.886 0.000
H2 0.733 1.655 0.000
C3 -0.035 -0.418 0.655
C4 -0.035 -0.418 -0.655
H5 -0.052 -0.976 1.572
H6 -0.052 -0.976 -1.572

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6
C11.08691.45941.45942.43712.4371
H21.08692.30592.30593.16403.1640
C31.45942.30591.30991.07382.2961
C41.45942.30591.30992.29611.0738
H52.43713.16401.07382.29613.1445
H62.43713.16402.29611.07383.1445

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 63.334 C1 C3 H5 147.963
C1 C4 C3 63.334 C1 C4 H6 147.963
H2 C1 C3 129.229 H2 C1 C4 129.229
C3 C1 C4 53.331 C3 C4 H6 148.680
C4 C3 H5 148.680
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability