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

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

Conformer 2 (CS)

Jump to S1C1
Energy calculated at MP2/aug-cc-pVDZ
 hartrees
Energy at 0K-115.588852
Energy at 298.15K-115.590543
HF Energy-115.205376
Nuclear repulsion energy57.258243
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/aug-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' 3329 3193 0.62      
2 A' 3121 2993 46.53      
3 A' 1608 1542 1.53      
4 A' 1237 1186 6.29      
5 A' 991 951 14.79      
6 A' 917 880 5.90      
7 A' 567 544 68.06      
8 A" 7159 6865 502551.90      
9 A" 3081 2955 2908.12      
10 A" 1000 959 15.21      
11 A" 963 924 0.01      
12 A" 816 782 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 12394.5 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 11886.3 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 MP2/aug-cc-pVDZ
ABC
1.02938 0.87388 0.48652

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.037 0.896 0.000
H2 0.748 1.667 0.000
C3 -0.037 -0.422 0.669
C4 -0.037 -0.422 -0.669
H5 -0.042 -0.991 1.595
H6 -0.042 -0.991 -1.595

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6
C11.09971.47801.47802.47112.4711
H21.09972.32912.32913.19873.1987
C31.47802.32911.33791.08712.3345
C41.47802.32911.33792.33451.0871
H52.47113.19871.08712.33453.1900
H62.47113.19872.33451.08713.1900

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 63.090 C1 C3 H5 148.499
C1 C4 C3 63.090 C1 C4 H6 148.499
H2 C1 C3 128.660 H2 C1 C4 128.660
C3 C1 C4 53.820 C3 C4 H6 148.409
C4 C3 H5 148.409
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability