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

using model chemistry: B2PLYP=FULL/6-31G(2df,p)

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 B2PLYP=FULL/6-31G(2df,p)
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULL/6-31G(2df,p)
See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G(2df,p)
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at B2PLYP=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-115.852200
Energy at 298.15K-115.853869
HF Energy-115.704392
Nuclear repulsion energy58.048598
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 B2PLYP=FULL/6-31G(2df,p)
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' 3343 3343 0.16      
2 A' 3106 3106 51.82      
3 A' 1658 1658 0.24      
4 A' 1253 1253 8.74      
5 A' 1017 1017 18.43      
6 A' 945 945 4.28      
7 A' 643 643 52.03      
8 A" 3298 3298 1.20      
9 A" 1063 1063 26.07      
10 A" 995 995 3.83      
11 A" 900 900 0.03      
12 A" 776 776 20.52      

Unscaled Zero Point Vibrational Energy (zpe) 9498.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9498.6 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 B2PLYP=FULL/6-31G(2df,p)
ABC
1.06515 0.89218 0.50007

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.037 0.887 0.000
H2 0.744 1.647 0.000
C3 -0.037 -0.418 0.656
C4 -0.037 -0.418 -0.656
H5 -0.039 -0.979 1.572
H6 -0.039 -0.979 -1.572

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6
C11.08951.46061.46062.44042.4404
H21.08952.30272.30273.15913.1591
C31.46062.30271.31271.07422.2981
C41.46062.30271.31272.29811.0742
H52.44043.15911.07422.29813.1441
H62.44043.15912.29811.07423.1441

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 63.297 C1 C3 H5 148.229
C1 C4 C3 63.297 C1 C4 H6 148.229
H2 C1 C3 128.510 H2 C1 C4 128.510
C3 C1 C4 53.407 C3 C4 H6 148.474
C4 C3 H5 148.474
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability