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

using model chemistry: MP3/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 MP3/CEP-121G*
 hartrees
Energy at 0K-19.713846
Energy at 298.15K-19.718054
HF Energy-19.333238
Nuclear repulsion energy35.942594
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/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 3289 3289 21.56      
2 A1 3191 3191 4.38      
3 A1 3181 3181 14.42      
4 A1 1552 1552 3.25      
5 A1 1295 1295 0.64      
6 A1 1051 1051 0.12      
7 A1 433 433 0.06      
8 A2 722 722 0.00      
9 A2 563 563 0.00      
10 B1 1007 1007 43.02      
11 B1 727 727 101.17      
12 B1 538 538 17.44      
13 B2 3287 3287 6.21      
14 B2 3177 3177 12.01      
15 B2 1517 1517 0.78      
16 B2 1418 1418 7.48      
17 B2 1119 1119 0.28      
18 B2 944 944 0.18      

Unscaled Zero Point Vibrational Energy (zpe) 14504.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14504.8 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/CEP-121G*
ABC
1.79600 0.34288 0.28791

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/CEP-121G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.452
H2 0.000 0.000 1.543
C3 0.000 1.231 -0.199
C4 0.000 -1.231 -0.199
H5 0.000 2.165 0.354
H6 0.000 -2.165 0.354
H7 0.000 1.290 -1.285
H8 0.000 -1.290 -1.285

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6 H7 H8
C11.09051.39281.39282.16692.16692.16382.1638
H21.09052.13312.13312.46972.46973.10813.1081
C31.39282.13312.46201.08523.44041.08752.7445
C41.39282.13312.46203.44041.08522.74451.0875
H52.16692.46971.08523.44044.32941.85803.8234
H62.16692.46973.44041.08524.32943.82341.8580
H72.16383.10811.08752.74451.85803.82342.5791
H82.16383.10812.74451.08753.82341.85802.5791

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 121.465 C1 C3 H7 120.983
C1 C4 H6 121.465 C1 C4 H8 120.983
H2 C1 C3 117.895 H2 C1 C4 117.895
C3 C1 C4 124.211 H5 C3 H7 117.552
H6 C4 H8 117.552
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability