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

using model chemistry: MP4/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at MP4/CEP-31G*
 hartrees
Energy at 0K-19.690922
Energy at 298.15K-19.695123
HF Energy-19.320892
Nuclear repulsion energy35.492661
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 MP4/CEP-31G*
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 3265 3082        
2 A1 3176 2997        
3 A1 3156 2979        
4 A1 1537 1451        
5 A1 1295 1222        
6 A1 1039 981        
7 A1 421 397        
8 A2 726 685        
9 A2 560 529        
10 B1 1043 985        
11 B1 767 723        
12 B1 543 512        
13 B2 3258 3075        
14 B2 3157 2979        
15 B2 1513 1428        
16 B2 1403 1324        
17 B2 1167 1102        
18 B2 915 863        

Unscaled Zero Point Vibrational Energy (zpe) 14470.4 cm-1
Scaled (by 0.9438) Zero Point Vibrational Energy (zpe) 13657.2 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 MP4/CEP-31G*
ABC
1.73600 0.33500 0.28081

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.464
H2 0.000 0.000 1.564
C3 0.000 1.246 -0.204
C4 0.000 -1.246 -0.204
H5 0.000 2.193 0.353
H6 0.000 -2.193 0.353
H7 0.000 1.294 -1.302
H8 0.000 -1.294 -1.302

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6 H7 H8
C11.10051.41361.41362.19562.19562.18922.1892
H21.10052.16312.16312.50512.50513.14483.1448
C31.41362.16312.49181.09863.48351.09892.7673
C41.41362.16312.49183.48351.09862.76731.0989
H52.19562.50511.09863.48354.38561.88313.8598
H62.19562.50513.48351.09864.38563.85981.8831
H72.18923.14481.09892.76731.88313.85982.5885
H82.18923.14482.76731.09893.85981.88312.5885

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 121.343 C1 C3 H7 120.713
C1 C4 H6 121.343 C1 C4 H8 120.713
H2 C1 C3 118.190 H2 C1 C4 118.190
C3 C1 C4 123.620 H5 C3 H7 117.945
H6 C4 H8 117.945
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability