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

using model chemistry: CCD/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 CCD/CEP-121G
 hartrees
Energy at 0K-19.552133
Energy at 298.15K-19.556286
HF Energy-19.286651
Nuclear repulsion energy35.447036
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 CCD/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 3167 2986 39.47      
2 A1 3073 2898 6.58      
3 A1 3051 2877 17.88      
4 A1 1523 1437 2.87      
5 A1 1267 1194 0.29      
6 A1 1025 967 0.15      
7 A1 427 402 0.01      
8 A2 700 660 0.00      
9 A2 537 507 0.00      
10 B1 955 901 46.24      
11 B1 692 652 97.74      
12 B1 517 488 11.22      
13 B2 3161 2982 11.21      
14 B2 3049 2875 17.28      
15 B2 1496 1411 1.55      
16 B2 1408 1328 5.25      
17 B2 1133 1068 0.07      
18 B2 936 883 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 14058.3 cm-1
Scaled (by 0.9431) Zero Point Vibrational Energy (zpe) 13258.3 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 CCD/CEP-121G
ABC
1.75796 0.33151 0.27892

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.458
H2 0.000 0.000 1.558
C3 0.000 1.252 -0.202
C4 0.000 -1.252 -0.202
H5 0.000 2.195 0.358
H6 0.000 -2.195 0.358
H7 0.000 1.318 -1.298
H8 0.000 -1.318 -1.298

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6 H7 H8
C11.10011.41541.41542.19682.19682.19532.1953
H21.10012.15982.15982.50132.50133.14543.1454
C31.41542.15982.50481.09583.49211.09842.7942
C41.41542.15982.50483.49211.09582.79421.0984
H52.19682.50131.09583.49214.38911.87383.8830
H62.19682.50133.49211.09584.38913.88301.8738
H72.19533.14541.09842.79421.87383.88302.6354
H82.19533.14542.79421.09843.88301.87382.6354

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 121.526 C1 C3 H7 121.179
C1 C4 H6 121.526 C1 C4 H8 121.179
H2 C1 C3 117.770 H2 C1 C4 117.770
C3 C1 C4 124.459 H5 C3 H7 117.296
H6 C4 H8 117.296
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability