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

using model chemistry: MP2/cc-pVDZ

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 MP2/cc-pVDZ
Rotational Constants (cm-1) from geometry optimized at MP2/cc-pVDZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVDZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at MP2/cc-pVDZ
 hartrees
Energy at 0K-115.573171
Energy at 298.15K-115.574903
HF Energy-115.201522
Nuclear repulsion energy57.263844
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 MP2/cc-pVDZ
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' 3336 3177 0.51      
2 A' 3125 2977 53.37      
3 A' 1628 1551 0.43      
4 A' 1257 1198 9.13      
5 A' 1020 971 17.29      
6 A' 922 879 6.26      
7 A' 601 572 60.03      
8 A" 9255 8815 1425060.00      
9 A" 3102 2954 2525.56      
10 A" 1012 964 14.73      
11 A" 972 926 0.00      
12 A" 857 816 0.21      

Unscaled Zero Point Vibrational Energy (zpe) 13543.2 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 12899.9 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 MP2/cc-pVDZ
ABC
1.03040 0.87311 0.48711

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.038 0.898 0.000
H2 0.761 1.657 0.000
C3 -0.038 -0.422 0.668
C4 -0.038 -0.422 -0.668
H5 -0.036 -0.992 1.595
H6 -0.036 -0.992 -1.595

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6
C11.10271.47841.47842.47292.4729
H21.10272.32522.32523.19383.1938
C31.47842.32521.33551.08892.3337
C41.47842.32521.33552.33371.0889
H52.47293.19381.08892.33373.1902
H62.47293.19382.33371.08893.1902

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 63.149 C1 C3 H5 148.460
C1 C4 C3 63.149 C1 C4 H6 148.460
H2 C1 C3 127.941 H2 C1 C4 127.941
C3 C1 C4 53.702 C3 C4 H6 148.391
C4 C3 H5 148.391
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability