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

using model chemistry: CID/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 CID/CEP-121G
 hartrees
Energy at 0K-19.526996
Energy at 298.15K-19.531196
HF Energy-19.287355
Nuclear repulsion energy35.570538
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 CID/CEP-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3232 2986 40.94      
2 A1 3141 2902 5.41      
3 A1 3116 2879 19.58      
4 A1 1549 1431 2.96      
5 A1 1283 1185 0.25      
6 A1 1037 958 0.16      
7 A1 433 400 0.01      
8 A2 716 662 0.00      
9 A2 544 502 0.00      
10 B1 969 895 45.31      
11 B1 714 660 101.49      
12 B1 524 484 12.56      
13 B2 3226 2981 11.54      
14 B2 3112 2875 18.62      
15 B2 1525 1409 1.43      
16 B2 1436 1327 5.48      
17 B2 1161 1073 0.07      
18 B2 953 881 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 14334.3 cm-1
Scaled (by 0.924) Zero Point Vibrational Energy (zpe) 13244.9 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 CID/CEP-121G
ABC
1.77057 0.33327 0.28048

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/CEP-121G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.457
H2 0.000 0.000 1.551
C3 0.000 1.249 -0.202
C4 0.000 -1.249 -0.202
H5 0.000 2.186 0.356
H6 0.000 -2.186 0.356
H7 0.000 1.314 -1.292
H8 0.000 -1.314 -1.292

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6 H7 H8
C11.09411.41231.41232.18872.18872.18752.1875
H21.09412.15232.15232.49182.49183.13203.1320
C31.41232.15232.49891.09003.48071.09252.7857
C41.41232.15232.49893.48071.09002.78571.0925
H52.18872.49181.09003.48074.37271.86443.8687
H62.18872.49183.48071.09004.37273.86871.8644
H72.18753.13201.09252.78571.86443.86872.6277
H82.18753.13202.78571.09253.86871.86442.6277

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 121.477 C1 C3 H7 121.166
C1 C4 H6 121.477 C1 C4 H8 121.166
H2 C1 C3 117.786 H2 C1 C4 117.786
C3 C1 C4 124.428 H5 C3 H7 117.357
H6 C4 H8 117.357
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability