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

using model chemistry: MP2/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 MP2/STO-3G
 hartrees
Energy at 0K-115.181311
Energy at 298.15K-115.185430
HF Energy-115.053240
Nuclear repulsion energy64.246442
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 MP2/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 3643 3177 0.50      
2 A1 3525 3074 0.00      
3 A1 3477 3032 0.07      
4 A1 1687 1471 0.00      
5 A1 1375 1199 0.16      
6 A1 1112 970 0.01      
7 A1 445 388 0.00      
8 A2 770 671 0.00      
9 A2 640 558 0.00      
10 B1 1113 971 4.76      
11 B1 775 676 22.85      
12 B1 574 500 3.40      
13 B2 3642 3176 0.01      
14 B2 3471 3026 8.96      
15 B2 1640 1430 2.33      
16 B2 1535 1338 0.61      
17 B2 1157 1009 2.15      
18 B2 1010 881 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 15795.8 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 13772.4 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 MP2/STO-3G
ABC
1.77386 0.33917 0.28473

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/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 1.555
C3 0.000 1.237 -0.200
C4 0.000 -1.237 -0.200
H5 0.000 2.181 0.356
H6 0.000 -2.181 0.356
H7 0.000 1.299 -1.295
H8 0.000 -1.299 -1.295

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6 H7 H8
C11.10051.39911.39912.18302.18302.17882.1788
H21.10052.14672.14672.48822.48823.13173.1317
C31.39912.14672.47361.09583.46261.09652.7624
C41.39912.14672.47363.46261.09582.76241.0965
H52.18302.48821.09583.46264.36161.87183.8521
H62.18302.48823.46261.09584.36163.85211.8718
H72.17883.13171.09652.76241.87183.85212.5988
H82.17883.13172.76241.09653.85211.87182.5988

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 121.605 C1 C3 H7 121.146
C1 C4 H6 121.605 C1 C4 H8 121.146
H2 C1 C3 117.874 H2 C1 C4 117.874
C3 C1 C4 124.253 H5 C3 H7 117.249
H6 C4 H8 117.249
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability