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

using model chemistry: CID/6-31G

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/6-31G
Rotational Constants (cm-1) from geometry optimized at CID/6-31G
See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-31G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at CID/6-31G
 hartrees
Energy at 0K-115.381064
Energy at 298.15K-115.382832
HF Energy-115.132359
Nuclear repulsion energy57.200059
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/6-31G
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' 3382 3163 0.18      
2 A' 3189 2982 43.88      
3 A' 1683 1574 0.20      
4 A' 1240 1159 10.55      
5 A' 1047 980 7.71      
6 A' 973 910 3.89      
7 A' 611 571 101.42      
8 A" 4070 3806 29081.22      
9 A" 2936 2746 6565.16      
10 A" 1078 1008 9.32      
11 A" 1055 987 5.33      
12 A" 853 798 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 11057.8 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 10341.2 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 CID/6-31G
ABC
1.04962 0.85215 0.48346

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.035 0.910 0.000
H2 0.732 1.682 0.000
C3 -0.035 -0.429 0.663
C4 -0.035 -0.429 -0.663
H5 -0.047 -0.996 1.578
H6 -0.047 -0.996 -1.578

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6
C11.08881.49421.49422.47462.4746
H21.08882.34212.34213.20463.2046
C31.49422.34211.32621.07652.3119
C41.49422.34211.32622.31191.0765
H52.47463.20461.07652.31193.1563
H62.47463.20462.31191.07653.1563

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 63.654 C1 C3 H5 148.128
C1 C4 C3 63.654 C1 C4 H6 148.128
H2 C1 C3 129.444 H2 C1 C4 129.444
C3 C1 C4 52.693 C3 C4 H6 148.208
C4 C3 H5 148.208
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability