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

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes CS 2A"

Conformer 1 (C2V)

Jump to S1C2
Vibrational Frequencies calculated at QCISD(T)=FULL/6-31+G**
Rotational Constants (cm-1) from geometry optimized at QCISD(T)=FULL/6-31+G**
See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/6-31+G**
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at QCISD(T)=FULL/6-31+G**
 hartrees
Energy at 0K-116.935990
Energy at 298.15K-116.940177
HF Energy-116.481416
Nuclear repulsion energy64.724400
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)=FULL/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 A' 3310 3310        
2 A' 3306 3306        
3 A' 3209 3209        
4 A' 3201 3201        
5 A' 3200 3200        
6 A' 1557 1557        
7 A' 1545 1545        
8 A' 1445 1445        
9 A' 1288 1288        
10 A' 1205 1205        
11 A' 1046 1046        
12 A' 948 948        
13 A' 424 424        
14 A" 982 982        
15 A" 749 749        
16 A" 736 736        
17 A" 536 536        
18 A" 512 512        

Unscaled Zero Point Vibrational Energy (zpe) 14600.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14600.2 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)=FULL/6-31+G**
ABC
1.80297 0.34323 0.28834

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.452 0.000
H2 0.002 1.539 0.000
C3 -1.231 -0.199 0.000
C4 1.231 -0.200 0.000
H5 -2.161 0.352 0.000
H6 2.161 0.350 0.000
H7 -1.287 -1.280 0.000
H8 1.288 -1.282 0.000

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6 H7 H8
C11.08621.39261.39292.16342.16362.15882.1601
H21.08622.13022.12922.46662.46513.09983.0998
C31.39262.13022.46161.08123.43631.08312.7420
C41.39292.12922.46163.43641.08092.74011.0831
H52.16342.46661.08123.43644.32231.85203.8167
H62.16362.46513.43631.08094.32233.81461.8505
H72.15883.09981.08312.74011.85203.81462.5756
H82.16013.09982.74201.08313.81671.85052.5756

picture of Allyl radical state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 121.466 C1 C3 H7 120.866
C1 C4 H6 121.486 C1 C4 H8 120.973
H2 C1 C3 117.962 H2 C1 C4 117.847
C3 C1 C4 124.192 H5 C3 H7 117.668
H6 C4 H8 117.541
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability