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

using model chemistry: PBEPBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-116.446761
Energy at 298.15K-116.450987
HF Energy-116.446761
Nuclear repulsion energy64.471259
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 PBEPBE/3-21G
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 3191 3162 17.15      
2 A1 3093 3065 4.79      
3 A1 3078 3050 9.88      
4 A1 1510 1497 3.15      
5 A1 1263 1252 0.37      
6 A1 1031 1022 0.50      
7 A1 430 426 0.04      
8 A2 765 758 0.00      
9 A2 537 532 0.00      
10 B1 990 981 23.04      
11 B1 794 786 100.57      
12 B1 521 517 19.22      
13 B2 3186 3157 4.64      
14 B2 3088 3060 6.55      
15 B2 1496 1482 1.07      
16 B2 1429 1416 7.14      
17 B2 1229 1217 0.08      
18 B2 943 935 0.39      

Unscaled Zero Point Vibrational Energy (zpe) 14286.7 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 14156.7 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 PBEPBE/3-21G
ABC
1.79999 0.34062 0.28642

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.447
H2 0.000 0.000 1.545
C3 0.000 1.235 -0.198
C4 0.000 -1.235 -0.198
H5 0.000 2.172 0.362
H6 0.000 -2.172 0.362
H7 0.000 1.298 -1.290
H8 0.000 -1.298 -1.290

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6 H7 H8
C11.09801.39301.39302.17392.17392.16932.1693
H21.09802.13602.13602.47352.47353.11893.1189
C31.39302.13602.46921.09233.45261.09452.7587
C41.39302.13602.46923.45261.09232.75871.0945
H52.17392.47351.09233.45264.34451.86963.8442
H62.17392.47353.45261.09234.34453.84421.8696
H72.16933.11891.09452.75871.86963.84422.5970
H82.16933.11892.75871.09453.84421.86962.5970

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 121.556 C1 C3 H7 120.935
C1 C4 H6 121.556 C1 C4 H8 120.935
H2 C1 C3 117.588 H2 C1 C4 117.588
C3 C1 C4 124.823 H5 C3 H7 117.509
H6 C4 H8 117.509
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.226      
2 H 0.202      
3 C -0.384      
4 C -0.384      
5 H 0.200      
6 H 0.200      
7 H 0.196      
8 H 0.196      


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 0.048 0.048
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.109 0.000 0.000
y 0.000 -17.284 0.000
z 0.000 0.000 -17.274
Traceless
 xyz
x -4.830 0.000 0.000
y 0.000 2.408 0.000
z 0.000 0.000 2.422
Polar
3z2-r24.844
x2-y2-4.825
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.382 0.000 0.000
y 0.000 7.181 0.000
z 0.000 0.000 4.386


<r2> (average value of r2) Å2
<r2> 50.549
(<r2>)1/2 7.110