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

using model chemistry: QCISD(T)/6-31+G**

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(T)/6-31+G**
 hartrees
Energy at 0K-116.920984
Energy at 298.15K-116.925159
HF Energy-116.481358
Nuclear repulsion energy64.658995
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(T)/6-31+G**
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 3307 3106        
2 A1 3207 3011        
3 A1 3199 3004        
4 A1 1552 1458        
5 A1 1287 1208        
6 A1 1044 980        
7 A1 425 399        
8 A2 730 686        
9 A2 532 500        
10 B1 979 920        
11 B1 743 698        
12 B1 508 477        
13 B2 3306 3104        
14 B2 3198 3003        
15 B2 1542 1448        
16 B2 1442 1354        
17 B2 1204 1130        
18 B2 945 887        

Unscaled Zero Point Vibrational Energy (zpe) 14574.9 cm-1
Scaled (by 0.939) Zero Point Vibrational Energy (zpe) 13685.9 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(T)/6-31+G**
ABC
1.79977 0.34249 0.28773

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

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 1.540
C3 0.000 1.232 -0.200
C4 0.000 -1.232 -0.200
H5 0.000 2.163 0.352
H6 0.000 -2.163 0.352
H7 0.000 1.289 -1.282
H8 0.000 -1.289 -1.282

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6 H7 H8
C11.08711.39431.39432.16542.16542.16142.1614
H21.08712.13172.13172.46792.46793.10253.1025
C31.39432.13172.46451.08193.43981.08412.7438
C41.39432.13172.46453.43981.08192.74381.0841
H52.16542.46791.08193.43984.32621.85313.8193
H62.16542.46793.43981.08194.32623.81931.8531
H72.16143.10251.08412.74381.85313.81932.5780
H82.16143.10252.74381.08413.81931.85312.5780

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 121.463 C1 C3 H7 120.897
C1 C4 H6 121.463 C1 C4 H8 120.897
H2 C1 C3 117.897 H2 C1 C4 117.897
C3 C1 C4 124.206 H5 C3 H7 117.640
H6 C4 H8 117.640
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability