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

using model chemistry: MP2/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 MP2/CEP-121G
 hartrees
Energy at 0K-19.511899
Energy at 298.15K-19.516085
HF Energy-19.287286
Nuclear repulsion energy35.580474
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/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 3233 3155 36.72      
2 A1 3131 3056 7.87      
3 A1 3109 3034 17.26      
4 A1 1546 1509 3.13      
5 A1 1285 1254 0.32      
6 A1 1041 1016 0.18      
7 A1 432 422 0.01      
8 A2 701 684 0.00      
9 A2 547 533 0.00      
10 B1 979 955 51.25      
11 B1 690 674 106.61      
12 B1 525 513 10.67      
13 B2 3228 3150 10.14      
14 B2 3106 3031 19.53      
15 B2 1519 1483 1.68      
16 B2 1426 1392 5.76      
17 B2 1142 1115 0.10      
18 B2 952 929 0.34      

Unscaled Zero Point Vibrational Energy (zpe) 14295.6 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 13952.5 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/CEP-121G
ABC
1.77114 0.33376 0.28084

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.456
H2 0.000 0.000 1.552
C3 0.000 1.248 -0.201
C4 0.000 -1.248 -0.201
H5 0.000 2.186 0.355
H6 0.000 -2.186 0.355
H7 0.000 1.311 -1.293
H8 0.000 -1.311 -1.293

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6 H7 H8
C11.09531.41111.41112.18852.18852.18602.1860
H21.09532.15212.15212.49202.49203.13213.1321
C31.41112.15212.49701.09063.47951.09332.7828
C41.41112.15212.49703.47951.09062.78281.0933
H52.18852.49201.09063.47954.37241.86603.8664
H62.18852.49203.47951.09064.37243.86641.8660
H72.18603.13211.09332.78281.86603.86642.6226
H82.18603.13212.78281.09333.86641.86602.6226

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 121.525 C1 C3 H7 121.071
C1 C4 H6 121.525 C1 C4 H8 121.071
H2 C1 C3 117.776 H2 C1 C4 117.776
C3 C1 C4 124.448 H5 C3 H7 117.404
H6 C4 H8 117.404
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability