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

using model chemistry: CID/3-21G*

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 CID/3-21G*
Rotational Constants (cm-1) from geometry optimized at CID/3-21G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at CID/3-21G*
 hartrees
Energy at 0K-114.775013
Energy at 298.15K 
HF Energy-114.527239
Nuclear repulsion energy57.287066
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 CID/3-21G*
Rotational Constants (cm-1) from geometry optimized at CID/3-21G*
ABC
1.06043 0.84710 0.48498

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.037 0.916 0.000
H2 0.752 1.660 0.000
C3 -0.037 -0.430 0.659
C4 -0.037 -0.430 -0.659
H5 -0.042 -0.997 1.567
H6 -0.042 -0.997 -1.567

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6
C11.08481.49881.49882.47342.4734
H21.08482.32942.32943.18583.1858
C31.49882.32941.31831.07082.2975
C41.49882.32941.31832.29751.0708
H52.47343.18581.07082.29753.1344
H62.47343.18582.29751.07083.1344

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 63.910 C1 C3 H5 148.088
C1 C4 C3 63.910 C1 C4 H6 148.088
H2 C1 C3 128.020 H2 C1 C4 128.020
C3 C1 C4 52.179 C3 C4 H6 148.000
C4 C3 H5 148.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability