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

using model chemistry: HF/CEP-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 HF/CEP-31G*
 hartrees
Energy at 0K-19.321898
Energy at 298.15K-19.326188
HF Energy-19.321898
Nuclear repulsion energy35.697122
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 HF/CEP-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 3430 3080 56.55      
2 A1 3358 3016 11.74      
3 A1 3331 2992 17.80      
4 A1 1627 1461 1.86      
5 A1 1332 1196 0.19      
6 A1 1061 953 0.03      
7 A1 440 395 0.09      
8 A2 774 695 0.00      
9 A2 567 509 0.00      
10 B1 1040 934 31.25      
11 B1 802 720 131.75      
12 B1 542 486 19.38      
13 B2 3421 3072 16.82      
14 B2 3328 2988 36.36      
15 B2 1628 1462 0.00      
16 B2 1508 1354 1.94      
17 B2 1257 1129 0.01      
18 B2 975 875 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 15210.4 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 13658.9 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 HF/CEP-31G*
ABC
1.75979 0.33591 0.28207

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.465
H2 0.000 0.000 1.547
C3 0.000 1.246 -0.205
C4 0.000 -1.246 -0.205
H5 0.000 2.177 0.346
H6 0.000 -2.177 0.346
H7 0.000 1.298 -1.286
H8 0.000 -1.298 -1.286

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6 H7 H8
C11.08261.41401.41402.18062.18062.17922.1792
H21.08262.14962.14962.48702.48703.11623.1162
C31.41402.14962.49111.08213.46681.08222.7638
C41.41402.14962.49113.46681.08212.76381.0822
H52.18062.48701.08213.46684.35471.85303.8392
H62.18062.48703.46681.08214.35473.83921.8530
H72.17923.11621.08222.76381.85303.83922.5962
H82.17923.11622.76381.08223.83921.85302.5962

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 121.186 C1 C3 H7 121.039
C1 C4 H6 121.186 C1 C4 H8 121.039
H2 C1 C3 118.254 H2 C1 C4 118.254
C3 C1 C4 123.491 H5 C3 H7 117.775
H6 C4 H8 117.775
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.124      
2 H 0.265      
3 C -0.574      
4 C -0.574      
5 H 0.176      
6 H 0.176      
7 H 0.203      
8 H 0.203      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.050 0.050
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.432 0.000 0.000
y 0.000 -17.806 0.000
z 0.000 0.000 -17.296
Traceless
 xyz
x -4.881 0.000 0.000
y 0.000 2.058 0.000
z 0.000 0.000 2.823
Polar
3z2-r25.647
x2-y2-4.626
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.387 0.000 0.000
y 0.000 6.408 0.000
z 0.000 0.000 4.039


<r2> (average value of r2) Å2
<r2> 44.379
(<r2>)1/2 6.662