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

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

Conformer 2 (CS)

Jump to S1C1
Energy calculated at QCISD(T)=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-115.642260
Energy at 298.15K-115.643865
HF Energy-115.204814
Nuclear repulsion energy57.074626
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 QCISD(T)=FULL/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' 3296 3197        
2 A' 3079 2987        
3 A' 1649 1600        
4 A' 1210 1173        
5 A' 978 948        
6 A' 913 885        
7 A' 549 533        
8 A" 3259 3161        
9 A" 1076 1043        
10 A" 983 954        
11 A" 886 860        
12 A" 791 767        

Unscaled Zero Point Vibrational Energy (zpe) 9333.6 cm-1
Scaled (by 0.9701) Zero Point Vibrational Energy (zpe) 9054.5 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 QCISD(T)=FULL/aug-cc-pVDZ
ABC
1.02779 0.86373 0.48322

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.037 0.902 0.000
H2 0.753 1.671 0.000
C3 -0.037 -0.424 0.669
C4 -0.037 -0.424 -0.669
H5 -0.044 -0.996 1.597
H6 -0.044 -0.996 -1.597

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6
C11.10241.48601.48602.48022.4802
H21.10242.33732.33733.20883.2088
C31.48602.33731.33841.08922.3367
C41.48602.33731.33842.33671.0892
H52.48023.20881.08922.33673.1931
H62.48023.20882.33671.08923.1931

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 63.235 C1 C3 H5 148.398
C1 C4 C3 63.235 C1 C4 H6 148.398
H2 C1 C3 128.496 H2 C1 C4 128.496
C3 C1 C4 53.531 C3 C4 H6 148.363
C4 C3 H5 148.363
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability