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

using model chemistry: CCSD(T)/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at CCSD(T)/CEP-121G*
 hartrees
Energy at 0K-19.742457
Energy at 298.15K-19.746531
HF Energy-19.332952
Nuclear repulsion energy35.705767
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(T)/CEP-121G*
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 3229 3046        
2 A1 3135 2956        
3 A1 3123 2946        
4 A1 1524 1437        
5 A1 1261 1189        
6 A1 1020 962        
7 A1 423 398        
8 A2 666 628        
9 A2 528 498        
10 B1 946 892        
11 B1 659 622        
12 B1 507 478        
13 B2 3227 3043        
14 B2 3120 2942        
15 B2 1506 1421        
16 B2 1403 1323        
17 B2 1159 1093        
18 B2 928 876        

Unscaled Zero Point Vibrational Energy (zpe) 14180.9 cm-1
Scaled (by 0.9431) Zero Point Vibrational Energy (zpe) 13374.0 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(T)/CEP-121G*
ABC
1.76960 0.33775 0.28362

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/CEP-121G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.458
H2 0.000 0.000 1.552
C3 0.000 1.241 -0.202
C4 0.000 -1.241 -0.202
H5 0.000 2.179 0.353
H6 0.000 -2.179 0.353
H7 0.000 1.296 -1.292
H8 0.000 -1.296 -1.292

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6 H7 H8
C11.09451.40501.40502.18142.18142.17742.1774
H21.09452.14822.14822.48722.48723.12543.1254
C31.40502.14822.48171.08953.46441.09172.7616
C41.40502.14822.48173.46441.08952.76161.0917
H52.18142.48721.08953.46444.35781.86613.8447
H62.18142.48723.46441.08954.35783.84471.8661
H72.17743.12541.09172.76161.86613.84472.5929
H82.17743.12542.76161.09173.84471.86612.5929

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 121.454 C1 C3 H7 120.895
C1 C4 H6 121.454 C1 C4 H8 120.895
H2 C1 C3 117.975 H2 C1 C4 117.975
C3 C1 C4 124.049 H5 C3 H7 117.652
H6 C4 H8 117.652
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability