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

using model chemistry: B3LYP/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 B3LYP/CEP-31G
 hartrees
Energy at 0K-19.860862
Energy at 298.15K-19.865148
HF Energy-19.860862
Nuclear repulsion energy35.449929
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 B3LYP/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 3259 3156 61.34      
2 A1 3160 3060 2.77      
3 A1 3144 3044 23.94      
4 A1 1518 1470 4.60      
5 A1 1279 1239 0.05      
6 A1 1027 995 0.70      
7 A1 423 410 0.04      
8 A2 833 806 0.00      
9 A2 558 540 0.00      
10 B1 1043 1010 27.75      
11 B1 873 846 195.07      
12 B1 535 519 23.91      
13 B2 3249 3147 17.91      
14 B2 3146 3046 25.30      
15 B2 1516 1468 1.60      
16 B2 1418 1373 8.16      
17 B2 1227 1188 0.41      
18 B2 929 899 0.48      

Unscaled Zero Point Vibrational Energy (zpe) 14568.7 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 14108.3 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 B3LYP/CEP-31G
ABC
1.74621 0.33193 0.27891

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.462
H2 0.000 0.000 1.559
C3 0.000 1.252 -0.204
C4 0.000 -1.252 -0.204
H5 0.000 2.195 0.354
H6 0.000 -2.195 0.354
H7 0.000 1.310 -1.297
H8 0.000 -1.310 -1.297

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6 H7 H8
C11.09661.41811.41812.19732.19732.19412.1941
H21.09662.16212.16212.50392.50393.14273.1427
C31.41812.16212.50391.09513.49141.09512.7860
C41.41812.16212.50393.49141.09512.78601.0951
H52.19732.50391.09513.49144.38931.87283.8745
H62.19732.50393.49141.09514.38933.87451.8728
H72.19413.14271.09512.78601.87283.87452.6210
H82.19413.14272.78601.09513.87451.87282.6210

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 121.388 C1 C3 H7 121.083
C1 C4 H6 121.388 C1 C4 H8 121.083
H2 C1 C3 118.018 H2 C1 C4 118.018
C3 C1 C4 123.965 H5 C3 H7 117.529
H6 C4 H8 117.529
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.159      
2 H 0.274      
3 C -0.613      
4 C -0.613      
5 H 0.177      
6 H 0.177      
7 H 0.219      
8 H 0.219      


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 0.093 0.093
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.416 0.000 0.000
y 0.000 -17.527 0.000
z 0.000 0.000 -16.984
Traceless
 xyz
x -5.160 0.000 0.000
y 0.000 2.173 0.000
z 0.000 0.000 2.987
Polar
3z2-r25.975
x2-y2-4.889
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.258 0.000 0.000
y 0.000 7.678 0.000
z 0.000 0.000 4.178


<r2> (average value of r2) Å2
<r2> 44.693
(<r2>)1/2 6.685