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

using model chemistry: CISD/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at CISD/STO-3G
 hartrees
Energy at 0K-115.223442
Energy at 298.15K-115.227508
HF Energy-115.052863
Nuclear repulsion energy63.981011
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 CISD/STO-3G
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 3592 3592 0.71      
2 A1 3488 3488 0.05      
3 A1 3440 3440 0.01      
4 A1 1671 1671 0.00      
5 A1 1363 1363 0.15      
6 A1 1102 1102 0.02      
7 A1 440 440 0.00      
8 A2 751 751 0.00      
9 A2 620 620 0.00      
10 B1 1081 1081 4.21      
11 B1 755 755 20.43      
12 B1 557 557 2.97      
13 B2 3591 3591 0.05      
14 B2 3430 3430 5.67      
15 B2 1624 1624 2.51      
16 B2 1525 1525 0.21      
17 B2 1165 1165 1.81      
18 B2 1001 1001 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 15597.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15597.5 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 CISD/STO-3G
ABC
1.76078 0.33608 0.28221

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.456
H2 0.000 0.000 1.559
C3 0.000 1.243 -0.201
C4 0.000 -1.243 -0.201
H5 0.000 2.189 0.358
H6 0.000 -2.189 0.358
H7 0.000 1.306 -1.299
H8 0.000 -1.306 -1.299

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6 H7 H8
C11.10321.40571.40572.19132.19132.18782.1878
H21.10322.15482.15482.49702.49703.14273.1427
C31.40572.15482.48541.09923.47701.09992.7753
C41.40572.15482.48543.47701.09922.77531.0999
H52.19132.49701.09923.47704.37811.87763.8681
H62.19132.49703.47701.09924.37813.86811.8776
H72.18783.14271.09992.77531.87763.86812.6123
H82.18783.14272.77531.09993.86811.87762.6123

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 121.559 C1 C3 H7 121.177
C1 C4 H6 121.559 C1 C4 H8 121.177
H2 C1 C3 117.869 H2 C1 C4 117.869
C3 C1 C4 124.261 H5 C3 H7 117.264
H6 C4 H8 117.264
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability