return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: PBEPBEultrafine/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at PBEPBEultrafine/LANL2DZ
 hartrees
Energy at 0K-117.076143
Energy at 298.15K-117.080353
HF Energy-117.076143
Nuclear repulsion energy64.016503
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 PBEPBEultrafine/LANL2DZ
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 3216 3216 36.40      
2 A1 3102 3102 0.20      
3 A1 3092 3092 23.20      
4 A1 1486 1486 7.02      
5 A1 1246 1246 0.10      
6 A1 1015 1015 1.30      
7 A1 416 416 0.13      
8 A2 810 810 0.00      
9 A2 533 533 0.00      
10 B1 993 993 21.90      
11 B1 841 841 162.16      
12 B1 519 519 24.22      
13 B2 3208 3208 7.57      
14 B2 3092 3092 11.49      
15 B2 1492 1492 3.21      
16 B2 1395 1395 10.99      
17 B2 1222 1222 0.90      
18 B2 919 919 1.32      

Unscaled Zero Point Vibrational Energy (zpe) 14298.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14298.2 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 PBEPBEultrafine/LANL2DZ
ABC
1.79016 0.33395 0.28145

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/LANL2DZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.448
H2 0.000 0.000 1.549
C3 0.000 1.247 -0.199
C4 0.000 -1.247 -0.199
H5 0.000 2.185 0.366
H6 0.000 -2.185 0.366
H7 0.000 1.319 -1.293
H8 0.000 -1.319 -1.293

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6 H7 H8
C11.10021.40531.40532.18672.18672.18462.1846
H21.10022.14692.14692.48442.48443.13293.1329
C31.40532.14692.49491.09493.47891.09672.7900
C41.40532.14692.49493.47891.09492.79001.0967
H52.18672.48441.09493.47894.37041.87213.8772
H62.18672.48443.47891.09494.37043.87721.8721
H72.18463.13291.09672.79001.87213.87722.6378
H82.18463.13292.79001.09673.87721.87212.6378

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 121.501 C1 C3 H7 121.154
C1 C4 H6 121.501 C1 C4 H8 121.154
H2 C1 C3 117.419 H2 C1 C4 117.419
C3 C1 C4 125.162 H5 C3 H7 117.345
H6 C4 H8 117.345
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.019      
2 H 0.213      
3 C -0.547      
4 C -0.547      
5 H 0.216      
6 H 0.216      
7 H 0.215      
8 H 0.215      


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 0.071 0.071
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.523 0.000 0.000
y 0.000 -17.309 0.000
z 0.000 0.000 -16.933
Traceless
 xyz
x -5.402 0.000 0.000
y 0.000 2.419 0.000
z 0.000 0.000 2.983
Polar
3z2-r25.967
x2-y2-5.214
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.039 0.000 0.000
y 0.000 7.739 0.000
z 0.000 0.000 4.316


<r2> (average value of r2) Å2
<r2> 51.213
(<r2>)1/2 7.156