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

using model chemistry: MP2=FULL/6-31+G**

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=FULL/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/6-31+G**
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31+G**
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at MP2=FULL/6-31+G**
 hartrees
Energy at 0K-115.596275
Energy at 298.15K-115.598014
HF Energy-115.202351
Nuclear repulsion energy57.920240
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=FULL/6-31+G**
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' 3386 3181 0.62      
2 A' 3186 2992 43.54      
3 A' 1656 1555 1.15      
4 A' 1275 1198 9.56      
5 A' 1039 976 11.85      
6 A' 956 898 8.31      
7 A' 583 547 85.38      
8 A" 5527 5191 167406.20      
9 A" 3106 2917 4043.16      
10 A" 1037 974 16.34      
11 A" 1015 953 0.98      
12 A" 855 803 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 11810.2 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 11092.1 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=FULL/6-31+G**
ABC
1.05312 0.89443 0.49764

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.035 0.886 0.000
H2 0.736 1.650 0.000
C3 -0.035 -0.417 0.661
C4 -0.035 -0.417 -0.661
H5 -0.050 -0.978 1.578
H6 -0.050 -0.978 -1.578

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6
C11.08581.46131.46132.44172.4417
H21.08582.30362.30363.16413.1641
C31.46132.30361.32291.07422.3083
C41.46132.30361.32292.30831.0742
H52.44173.16411.07422.30833.1555
H62.44173.16412.30831.07423.1555

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 63.087 C1 C3 H5 148.353
C1 C4 C3 63.087 C1 C4 H6 148.353
H2 C1 C3 128.882 H2 C1 C4 128.882
C3 C1 C4 53.827 C3 C4 H6 148.543
C4 C3 H5 148.543
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability