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All results from a given calculation for CH3CHCH3 (Isopropyl radical)

using model chemistry: B3LYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at B3LYP/6-311G*
 hartrees
Energy at 0K-118.504340
Energy at 298.15K-118.510455
HF Energy-118.504340
Nuclear repulsion energy75.351948
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/6-311G*
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' 3163 3056 37.82      
2 A' 3084 2980 23.57      
3 A' 3017 2915 63.71      
4 A' 2941 2842 70.78      
5 A' 1511 1460 5.09      
6 A' 1499 1448 17.57      
7 A' 1430 1382 4.52      
8 A' 1186 1146 2.77      
9 A' 1038 1003 0.13      
10 A' 886 856 2.00      
11 A' 393 380 10.83      
12 A' 348 336 17.63      
13 A' 117 113 0.77      
14 A" 3085 2981 36.79      
15 A" 3015 2913 9.79      
16 A" 2936 2837 27.42      
17 A" 1497 1447 1.78      
18 A" 1487 1437 1.06      
19 A" 1424 1376 7.83      
20 A" 1378 1332 2.76      
21 A" 1150 1112 0.21      
22 A" 954 922 1.29      
23 A" 947 915 0.00      
24 A" 112 108 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19298.9 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 18648.5 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/6-311G*
ABC
1.25081 0.27720 0.24784

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.010 0.535 0.000
C2 -0.010 -0.197 1.298
C3 -0.010 -0.197 -1.298
H4 0.214 1.597 0.000
H5 -0.763 -0.996 1.313
H6 -0.763 -0.996 -1.313
H7 0.956 -0.690 1.498
H8 -0.208 0.465 2.145
H9 0.956 -0.690 -1.498
H10 -0.208 0.465 -2.145

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49011.49011.08552.15312.15312.16332.15472.16332.1547
C21.49012.59522.22601.09752.83211.10361.09302.99853.5108
C31.49012.59522.22602.83211.09752.99853.51081.10361.0930
H41.08552.22602.22603.06663.06662.83362.46152.83362.4615
H52.15311.09752.83213.06662.62641.75591.77033.30903.7946
H62.15312.83211.09753.06662.62643.30903.79461.75591.7703
H72.16331.10362.99852.83361.75593.30901.76322.99513.9944
H82.15471.09303.51082.46151.77033.79461.76323.99444.2891
H92.16332.99851.10362.83363.30901.75592.99513.99441.7632
H102.15473.51081.09302.46153.79461.77033.99444.28911.7632

picture of Isopropyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.727 C1 C2 H7 112.177
C1 C2 H8 112.142 C1 C3 H6 111.727
C1 C3 H9 112.177 C1 C3 H10 112.142
C2 C1 C3 121.106 C2 C1 H4 118.754
C3 C1 H4 118.754 H5 C2 H7 105.828
H5 C2 H8 107.830 H6 C3 H9 105.828
H6 C3 H10 107.830 H7 C2 H8 106.769
H9 C3 H10 106.769
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.191      
2 C -0.628      
3 C -0.628      
4 H 0.196      
5 H 0.207      
6 H 0.207      
7 H 0.206      
8 H 0.212      
9 H 0.206      
10 H 0.212      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.165 -0.092 0.000 0.189
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.835 0.332 0.000
y 0.332 -20.779 0.000
z 0.000 0.000 -20.937
Traceless
 xyz
x -0.977 0.332 0.000
y 0.332 0.606 0.000
z 0.000 0.000 0.370
Polar
3z2-r20.741
x2-y2-1.056
xy0.332
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.361 0.026 0.000
y 0.026 5.173 0.000
z 0.000 0.000 6.024


<r2> (average value of r2) Å2
<r2> 61.804
(<r2>)1/2 7.862