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

using model chemistry: MP2/LANL2DZ

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/LANL2DZ
Rotational Constants (cm-1) from geometry optimized at MP2/LANL2DZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at MP2/LANL2DZ
 hartrees
Energy at 0K-115.380375
Energy at 298.15K-115.382095
HF Energy-115.137274
Nuclear repulsion energy56.198362
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/LANL2DZ
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' 3338 3215 0.19      
2 A' 3150 3034 41.51      
3 A' 1538 1482 1.25      
4 A' 1183 1139 9.56      
5 A' 1010 973 7.52      
6 A' 954 919 8.65      
7 A' 609 586 113.41      
8 A" 3369 3245 673.23      
9 A" 1982 1908 2500.58      
10 A" 1038 1000 15.02      
11 A" 997 960 5.39      
12 A" 835 804 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 10000.9 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 9631.8 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/LANL2DZ
ABC
1.00378 0.82847 0.46615

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.035 0.923 0.000
H2 0.735 1.705 0.000
C3 -0.035 -0.437 0.680
C4 -0.035 -0.437 -0.680
H5 -0.051 -1.000 1.606
H6 -0.051 -1.000 -1.606

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6
C11.09731.52121.52122.50572.5057
H21.09732.37612.37613.24253.2425
C31.52122.37611.36061.08322.3543
C41.52122.37611.36062.35431.0832
H52.50573.24251.08322.35433.2114
H62.50573.24252.35431.08323.2114

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 63.435 C1 C3 H5 147.866
C1 C4 C3 63.435 C1 C4 H6 147.866
H2 C1 C3 129.589 H2 C1 C4 129.589
C3 C1 C4 53.131 C3 C4 H6 148.680
C4 C3 H5 148.680
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability