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

using model chemistry: CCSD/cc-pVTZ

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

Conformer 2 (CS)

Jump to S1C1
Energy calculated at CCSD/cc-pVTZ
 hartrees
Energy at 0K-115.705148
Energy at 298.15K-115.706820
HF Energy-115.234476
Nuclear repulsion energy58.020786
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 CCSD/cc-pVTZ
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' 3332 3136 0.76      
2 A' 3119 2936 43.95      
3 A' 1665 1567 0.99      
4 A' 1247 1174 6.90      
5 A' 1007 947 17.34      
6 A' 938 883 4.16      
7 A' 617 581 68.96      
8 A" 3287 3093 1.46      
9 A" 1079 1015 23.85      
10 A" 1005 946 5.87      
11 A" 884 832 0.35      
12 A" 813 765 20.19      

Unscaled Zero Point Vibrational Energy (zpe) 9495.9 cm-1
Scaled (by 0.9412) Zero Point Vibrational Energy (zpe) 8937.5 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 CCSD/cc-pVTZ
ABC
1.06603 0.88980 0.49906

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.036 0.888 0.000
H2 0.734 1.654 0.000
C3 -0.036 -0.419 0.656
C4 -0.036 -0.419 -0.656
H5 -0.040 -0.978 1.573
H6 -0.040 -0.978 -1.573

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6
C11.08631.46261.46262.44082.4408
H21.08632.30692.30693.16293.1629
C31.46262.30691.31261.07372.2982
C41.46262.30691.31262.29821.0737
H52.44083.16291.07372.29823.1455
H62.44083.16292.29821.07373.1455

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 63.338 C1 C3 H5 148.066
C1 C4 C3 63.338 C1 C4 H6 148.066
H2 C1 C3 129.071 H2 C1 C4 129.071
C3 C1 C4 53.325 C3 C4 H6 148.595
C4 C3 H5 148.595
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability