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

using model chemistry: QCISD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at QCISD/6-311G*
 hartrees
Energy at 0K-116.900066
Energy at 298.15K-116.904274
HF Energy-116.489112
Nuclear repulsion energy64.625110
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 QCISD/6-311G*
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 3250 3111 22.25      
2 A1 3157 3022 1.45      
3 A1 3148 3014 17.67      
4 A1 1537 1471 3.21      
5 A1 1283 1229 0.60      
6 A1 1041 997 0.14      
7 A1 431 413 0.04      
8 A2 740 708 0.00      
9 A2 546 523 0.00      
10 B1 981 940 30.69      
11 B1 753 721 83.42      
12 B1 526 503 17.84      
13 B2 3247 3108 6.86      
14 B2 3146 3012 10.53      
15 B2 1523 1458 0.84      
16 B2 1432 1371 6.21      
17 B2 1185 1134 0.00      
18 B2 946 906 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 14435.4 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 13820.4 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 QCISD/6-311G*
ABC
1.80289 0.34219 0.28760

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.450
H2 0.000 0.000 1.541
C3 0.000 1.232 -0.199
C4 0.000 -1.232 -0.199
H5 0.000 2.166 0.356
H6 0.000 -2.166 0.356
H7 0.000 1.295 -1.285
H8 0.000 -1.295 -1.285

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6 H7 H8
C11.09151.39221.39222.16772.16772.16502.1650
H21.09152.13202.13202.46882.46883.10903.1090
C31.39222.13202.46401.08603.44271.08822.7509
C41.39222.13202.46403.44271.08602.75091.0882
H52.16772.46881.08603.44274.33141.85763.8303
H62.16772.46883.44271.08604.33143.83031.8576
H72.16503.10901.08822.75091.85763.83032.5905
H82.16503.10902.75091.08823.83031.85762.5905

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 121.529 C1 C3 H7 121.090
C1 C4 H6 121.529 C1 C4 H8 121.090
H2 C1 C3 117.758 H2 C1 C4 117.758
C3 C1 C4 124.484 H5 C3 H7 117.381
H6 C4 H8 117.381
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability