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 CH3CHCH (1-propenyl radical)

using model chemistry: HF/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at HF/3-21G*
 hartrees
Energy at 0K-115.784879
Energy at 298.15K-115.788975
HF Energy-115.784879
Nuclear repulsion energy64.156834
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/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 A' 3409 3077 3.88      
2 A' 3275 2956 25.59      
3 A' 3243 2927 6.79      
4 A' 3189 2879 24.39      
5 A' 1674 1511 5.99      
6 A' 1598 1442 2.56      
7 A' 1566 1414 2.68      
8 A' 1374 1240 3.08      
9 A' 1224 1105 11.03      
10 A' 1002 904 0.73      
11 A' 893 806 8.68      
12 A' 458 413 5.02      
13 A" 3233 2918 27.23      
14 A" 1659 1498 8.65      
15 A" 1174 1060 0.20      
16 A" 923 833 0.02      
17 A" 650 587 60.58      
18 A" 171 154 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 15357.1 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 13861.4 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/3-21G*
ABC
1.86752 0.31837 0.28631

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.462 0.000
C2 1.320 0.306 0.000
C3 -0.987 -0.687 0.000
H4 -0.423 1.456 0.000
H5 2.151 0.979 0.000
H6 -0.473 -1.639 0.000
H7 -1.626 -0.640 0.876
H8 -1.626 -0.640 -0.876

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8
C11.32901.51441.08032.21252.15342.15092.1509
C21.32902.51192.08761.06902.64593.21613.2161
C31.51442.51192.21563.55301.08221.08561.0856
H41.08032.08762.21562.61813.09532.57082.5708
H52.21251.06903.55302.61813.70674.20204.2020
H62.15342.64591.08223.09533.70671.75941.7594
H72.15093.21611.08562.57084.20201.75941.7529
H82.15093.21611.08562.57084.20201.75941.7529

picture of 1-propenyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 134.351 C1 C3 H6 110.955
C1 C3 H7 110.552 C1 C3 H8 110.552
C2 C1 C3 123.980 C2 C1 H4 119.747
C3 C1 H4 116.273 H6 C3 H7 108.501
H6 C3 H8 108.501 H7 C3 H8 107.682
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.309      
2 C -0.174      
3 C -0.619      
4 H 0.228      
5 H 0.223      
6 H 0.221      
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
  -0.397 0.450 0.000 0.599
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.423 1.006 0.000
y 1.006 -18.622 0.000
z 0.000 0.000 -21.228
Traceless
 xyz
x 1.502 1.006 0.000
y 1.006 1.204 0.000
z 0.000 0.000 -2.706
Polar
3z2-r2-5.411
x2-y20.199
xy1.006
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.578 0.355 0.000
y 0.355 3.547 0.000
z 0.000 0.000 2.364


<r2> (average value of r2) Å2
<r2> 51.544
(<r2>)1/2 7.179