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

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

Conformer 2 (CS)

Jump to S1C1
Energy calculated at QCISD(TQ)/aug-cc-pVDZ
 hartrees
Energy at 0K-115.634889
Energy at 298.15K-115.636350
HF Energy-115.204589
Nuclear repulsion energy57.022572
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(TQ)/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' 3283 3283        
2 A' 3076 3076        
3 A' 1590 1590        
4 A' 1208 1208        
5 A' 975 975        
6 A' 911 911        
7 A' 542 542        
8 A" 3243 3243        
9 A" 1008 1008        
10 A" 942 942        
11 A" 783 783        
12 A" 600 600        

Unscaled Zero Point Vibrational Energy (zpe) 9079.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9079.9 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(TQ)/aug-cc-pVDZ
ABC
1.02656 0.86159 0.48229

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.037 0.904 0.000
H2 0.754 1.673 0.000
C3 -0.037 -0.425 0.670
C4 -0.037 -0.425 -0.670
H5 -0.044 -0.997 1.597
H6 -0.044 -0.997 -1.597

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6
C11.10321.48771.48772.48272.4827
H21.10322.33962.33963.21183.2118
C31.48772.33961.33921.09002.3381
C41.48772.33961.33922.33811.0900
H52.48273.21181.09002.33813.1946
H62.48273.21182.33811.09003.1946

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 63.249 C1 C3 H5 148.415
C1 C4 C3 63.249 C1 C4 H6 148.415
H2 C1 C3 128.508 H2 C1 C4 128.508
C3 C1 C4 53.502 C3 C4 H6 148.332
C4 C3 H5 148.332
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability