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

using model chemistry: CCD/CEP-31G*

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-31G*
 hartrees
Energy at 0K-19.680666
Energy at 298.15K-19.684885
HF Energy-19.320960
Nuclear repulsion energy35.514621
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-31G*
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 3271 3085 35.97      
2 A1 3184 3003 4.28      
3 A1 3164 2984 18.15      
4 A1 1542 1455 3.10      
5 A1 1298 1224 0.36      
6 A1 1042 983 0.24      
7 A1 425 400 0.04      
8 A2 738 696 0.00      
9 A2 562 530 0.00      
10 B1 1042 983 39.11      
11 B1 777 733 128.44      
12 B1 544 513 24.94      
13 B2 3263 3078 11.37      
14 B2 3164 2984 23.52      
15 B2 1519 1432 0.16      
16 B2 1411 1331 6.42      
17 B2 1170 1104 0.03      
18 B2 920 868 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 14518.2 cm-1
Scaled (by 0.9431) Zero Point Vibrational Energy (zpe) 13692.1 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-31G*
ABC
1.73893 0.33545 0.28121

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.463
H2 0.000 0.000 1.563
C3 0.000 1.245 -0.204
C4 0.000 -1.245 -0.204
H5 0.000 2.191 0.353
H6 0.000 -2.191 0.353
H7 0.000 1.295 -1.301
H8 0.000 -1.295 -1.301

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6 H7 H8
C11.09981.41231.41232.19402.19402.18862.1886
H21.09982.16132.16132.50302.50303.14333.1433
C31.41232.16132.48981.09813.48101.09842.7669
C41.41232.16132.48983.48101.09812.76691.0984
H52.19402.50301.09813.48104.38251.88143.8590
H62.19402.50303.48101.09814.38253.85901.8814
H72.18863.14331.09842.76691.88143.85902.5903
H82.18863.14332.76691.09843.85901.88142.5903

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 121.333 C1 C3 H7 120.803
C1 C4 H6 121.333 C1 C4 H8 120.803
H2 C1 C3 118.181 H2 C1 C4 118.181
C3 C1 C4 123.637 H5 C3 H7 117.864
H6 C4 H8 117.864
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability