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

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

Conformer 2 (CS)

Jump to S1C1
Energy calculated at B2PLYP=FULL/6-31G*
 hartrees
Energy at 0K-115.815893
Energy at 298.15K-115.817526
HF Energy-115.691822
Nuclear repulsion energy57.903333
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*
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' 3342 3169 0.04      
2 A' 3109 2948 64.96      
3 A' 1675 1588 0.24      
4 A' 1265 1200 9.98      
5 A' 1037 984 16.00      
6 A' 943 895 5.11      
7 A' 604 573 60.18      
8 A" 3300 3130 0.06      
9 A" 1071 1016 25.47      
10 A" 1006 954 5.01      
11 A" 871 826 0.10      
12 A" 777 737 19.97      

Unscaled Zero Point Vibrational Energy (zpe) 9499.4 cm-1
Scaled (by 0.9484) Zero Point Vibrational Energy (zpe) 9009.3 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 B2PLYP=FULL/6-31G*
ABC
1.05935 0.88820 0.49769

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.037 0.889 0.000
H2 0.748 1.649 0.000
C3 -0.037 -0.418 0.658
C4 -0.037 -0.418 -0.658
H5 -0.039 -0.982 1.577
H6 -0.039 -0.982 -1.577

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6
C11.09231.46391.46392.44762.4476
H21.09232.30702.30703.16693.1669
C31.46392.30701.31591.07832.3051
C41.46392.30701.31592.30511.0783
H52.44763.16691.07832.30513.1540
H62.44763.16692.30511.07833.1540

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 63.291 C1 C3 H5 148.250
C1 C4 C3 63.291 C1 C4 H6 148.250
H2 C1 C3 128.393 H2 C1 C4 128.393
C3 C1 C4 53.418 C3 C4 H6 148.459
C4 C3 H5 148.459
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability