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

using model chemistry: QCISD(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 QCISD(T)/6-31G**
 hartrees
Energy at 0K-116.912586
Energy at 298.15K-116.916819
HF Energy-116.476791
Nuclear repulsion energy64.752323
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)/6-31G**
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 3315 3107        
2 A1 3216 3014        
3 A1 3207 3006        
4 A1 1567 1469        
5 A1 1295 1214        
6 A1 1051 985        
7 A1 430 403        
8 A2 753 705        
9 A2 562 527        
10 B1 999 937        
11 B1 755 707        
12 B1 531 498        
13 B2 3312 3104        
14 B2 3208 3006        
15 B2 1550 1453        
16 B2 1449 1358        
17 B2 1207 1131        
18 B2 955 895        

Unscaled Zero Point Vibrational Energy (zpe) 14680.3 cm-1
Scaled (by 0.9373) Zero Point Vibrational Energy (zpe) 13759.8 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 QCISD(T)/6-31G**
ABC
1.80480 0.34359 0.28864

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

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 1.539
C3 0.000 1.230 -0.199
C4 0.000 -1.230 -0.199
H5 0.000 2.162 0.349
H6 0.000 -2.162 0.349
H7 0.000 1.286 -1.281
H8 0.000 -1.286 -1.281

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6 H7 H8
C11.08661.39171.39172.16452.16452.15822.1582
H21.08662.12902.12902.46782.46783.09923.0992
C31.39172.12902.45991.08133.43601.08352.7388
C41.39172.12902.45993.43601.08132.73881.0835
H52.16452.46781.08133.43604.32411.85053.8140
H62.16452.46783.43601.08134.32413.81401.8505
H72.15823.09921.08352.73881.85053.81402.5721
H82.15823.09922.73881.08353.81401.85052.5721

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 121.651 C1 C3 H7 120.864
C1 C4 H6 121.651 C1 C4 H8 120.864
H2 C1 C3 117.897 H2 C1 C4 117.897
C3 C1 C4 124.207 H5 C3 H7 117.485
H6 C4 H8 117.485
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability