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All results from a given calculation for C3H5 (Allyl radical)

using model chemistry: QCISD(TQ)/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at QCISD(TQ)/3-21G*
 hartrees
Energy at 0K-116.107294
Energy at 298.15K-116.111522
HF Energy-115.821673
Nuclear repulsion energy64.292635
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)/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3204 3204        
2 A1 3113 3113        
3 A1 3102 3102        
4 A1 1559 1559        
5 A1 1284 1284        
6 A1 1034 1034        
7 A1 444 444        
8 A2 755 755        
9 A2 546 546        
10 B1 981 981        
11 B1 766 766        
12 B1 523 523        
13 B2 3200 3200        
14 B2 3107 3107        
15 B2 1532 1532        
16 B2 1459 1459        
17 B2 1171 1171        
18 B2 972 972        

Unscaled Zero Point Vibrational Energy (zpe) 14376.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14376.1 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 QCISD(TQ)/3-21G*
ABC
1.78553 0.33827 0.28439

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(TQ)/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.454
H2 0.000 0.000 1.548
C3 0.000 1.239 -0.200
C4 0.000 -1.239 -0.200
H5 0.000 2.178 0.353
H6 0.000 -2.178 0.353
H7 0.000 1.302 -1.289
H8 0.000 -1.302 -1.289

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6 H7 H8
C11.09431.40091.40092.18022.18022.17582.1758
H21.09432.14242.14242.48412.48413.12203.1220
C31.40092.14242.47851.08923.46151.09162.7652
C41.40092.14242.47853.46151.08922.76521.0916
H52.18022.48411.08923.46154.35571.86133.8482
H62.18022.48413.46151.08924.35573.84821.8613
H72.17583.12201.09162.76521.86133.84822.6044
H82.17583.12202.76521.09163.84821.86132.6044

picture of Allyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 121.711 C1 C3 H7 121.103
C1 C4 H6 121.711 C1 C4 H8 121.103
H2 C1 C3 117.797 H2 C1 C4 117.797
C3 C1 C4 124.405 H5 C3 H7 117.185
H6 C4 H8 117.185
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability