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

using model chemistry: CCSD(T)/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at CCSD(T)/6-31G
 hartrees
Energy at 0K-116.712423
Energy at 298.15K-116.716620
HF Energy-116.427595
Nuclear repulsion energy64.011458
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 CCSD(T)/6-31G
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 3207 3025        
2 A1 3111 2934        
3 A1 3095 2919        
4 A1 1545 1457        
5 A1 1282 1209        
6 A1 1037 978        
7 A1 432 407        
8 A2 749 707        
9 A2 534 504        
10 B1 969 914        
11 B1 759 716        
12 B1 517 488        
13 B2 3203 3021        
14 B2 3105 2928        
15 B2 1524 1437        
16 B2 1450 1368        
17 B2 1200 1132        
18 B2 955 901        

Unscaled Zero Point Vibrational Energy (zpe) 14336.7 cm-1
Scaled (by 0.9431) Zero Point Vibrational Energy (zpe) 13521.0 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 CCSD(T)/6-31G
ABC
1.77922 0.33449 0.28156

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.453
H2 0.000 0.000 1.552
C3 0.000 1.246 -0.200
C4 0.000 -1.246 -0.200
H5 0.000 2.187 0.355
H6 0.000 -2.187 0.355
H7 0.000 1.315 -1.293
H8 0.000 -1.315 -1.293

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6 H7 H8
C11.09841.40701.40702.18962.18962.18602.1860
H21.09842.14982.14982.49332.49333.13403.1340
C31.40702.14982.49231.09273.47821.09532.7845
C41.40702.14982.49233.47821.09272.78451.0953
H52.18962.49331.09273.47824.37481.86503.8706
H62.18962.49333.47821.09274.37483.87061.8650
H72.18603.13401.09532.78451.86503.87062.6295
H82.18603.13402.78451.09533.87061.86502.6295

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 121.807 C1 C3 H7 121.254
C1 C4 H6 121.807 C1 C4 H8 121.254
H2 C1 C3 117.665 H2 C1 C4 117.665
C3 C1 C4 124.671 H5 C3 H7 116.940
H6 C4 H8 116.940
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability