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

using model chemistry: MP3/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at MP3/STO-3G
 hartrees
Energy at 0K-115.212238
Energy at 298.15K-115.216346
HF Energy-115.052551
Nuclear repulsion energy64.136810
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 MP3/STO-3G
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 3579 3198 0.89      
2 A1 3467 3099 0.02      
3 A1 3422 3058 0.05      
4 A1 1667 1490 0.01      
5 A1 1366 1221 0.17      
6 A1 1106 988 0.02      
7 A1 441 394 0.00      
8 A2 774 692 0.00      
9 A2 639 571 0.00      
10 B1 1113 994 4.49      
11 B1 780 697 22.19      
12 B1 574 513 3.31      
13 B2 3579 3198 0.05      
14 B2 3415 3052 8.60      
15 B2 1616 1444 2.05      
16 B2 1516 1354 0.80      
17 B2 1127 1007 2.43      
18 B2 997 891 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 15588.8 cm-1
Scaled (by 0.8936) Zero Point Vibrational Energy (zpe) 13930.2 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 MP3/STO-3G
ABC
1.76676 0.33847 0.28405

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/STO-3G

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 1.559
C3 0.000 1.238 -0.200
C4 0.000 -1.238 -0.200
H5 0.000 2.186 0.359
H6 0.000 -2.186 0.359
H7 0.000 1.302 -1.300
H8 0.000 -1.302 -1.300

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6 H7 H8
C11.10521.39971.39972.18792.18792.18372.1837
H21.10522.15072.15072.49362.49363.14093.1409
C31.39972.15072.47521.10063.46871.10142.7671
C41.39972.15072.47523.46871.10062.76711.1014
H52.18792.49361.10063.46874.37161.87943.8617
H62.18792.49363.46871.10064.37163.86171.8794
H72.18373.14091.10142.76711.87943.86172.6032
H82.18373.14092.76711.10143.86171.87942.6032

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 121.641 C1 C3 H7 121.177
C1 C4 H6 121.641 C1 C4 H8 121.177
H2 C1 C3 117.846 H2 C1 C4 117.846
C3 C1 C4 124.308 H5 C3 H7 117.182
H6 C4 H8 117.182
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability