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

using model chemistry: BLYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at BLYP/6-31+G**
 hartrees
Energy at 0K-118.407788
Energy at 298.15K-118.413807
HF Energy-118.407788
Nuclear repulsion energy74.764709
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 BLYP/6-31+G**
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' 3099 3083 32.39      
2 A' 3018 3002 18.49      
3 A' 2937 2922 57.18      
4 A' 2860 2845 69.56      
5 A' 1457 1449 5.47      
6 A' 1443 1435 15.55      
7 A' 1377 1370 3.22      
8 A' 1145 1139 2.24      
9 A' 998 993 0.09      
10 A' 859 854 2.06      
11 A' 378 376 11.24      
12 A' 338 336 22.47      
13 A' 106 105 1.79      
14 A" 3019 3003 35.45      
15 A" 2936 2921 11.37      
16 A" 2856 2840 30.70      
17 A" 1442 1434 1.76      
18 A" 1433 1426 0.42      
19 A" 1370 1363 5.58      
20 A" 1331 1324 5.23      
21 A" 1115 1109 0.75      
22 A" 920 915 1.01      
23 A" 914 909 0.21      
24 A" 114 113 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 18731.6 cm-1
Scaled (by 0.9947) Zero Point Vibrational Energy (zpe) 18632.3 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 BLYP/6-31+G**
ABC
1.23128 0.27305 0.24407

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.009 0.538 0.000
C2 -0.009 -0.198 1.308
C3 -0.009 -0.198 -1.308
H4 0.189 1.615 0.000
H5 -0.780 -0.993 1.329
H6 -0.780 -0.993 -1.329
H7 0.959 -0.714 1.500
H8 -0.189 0.474 2.162
H9 0.959 -0.714 -1.500
H10 -0.189 0.474 -2.162

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.50091.50091.09442.16912.16912.18042.17052.18042.1705
C21.50092.61542.24411.10742.85971.11371.10203.01413.5389
C31.50092.61542.24412.85971.10743.01413.53891.11371.1020
H41.09442.24412.24413.08303.08302.87442.47352.87442.4735
H52.16911.10742.85973.08302.65781.77011.78783.33233.8326
H62.16912.85971.10743.08302.65783.33233.83261.77011.7878
H72.18041.11373.01412.87441.77013.33231.77972.99924.0170
H82.17051.10203.53892.47351.78783.83261.77974.01704.3242
H92.18043.01411.11372.87443.33231.77012.99924.01701.7797
H102.17053.53891.10202.47353.83261.78784.01704.32421.7797

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 111.642 C1 C2 H7 112.163
C1 C2 H8 112.090 C1 C3 H6 111.642
C1 C3 H9 112.163 C1 C3 H10 112.090
C2 C1 C3 121.214 C2 C1 H4 118.858
C3 C1 H4 118.858 H5 C2 H7 105.677
H5 C2 H8 108.031 H6 C3 H9 105.677
H6 C3 H10 108.031 H7 C2 H8 106.882
H9 C3 H10 106.882
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.135      
2 C -0.576      
3 C -0.576      
4 H 0.124      
5 H 0.147      
6 H 0.147      
7 H 0.151      
8 H 0.148      
9 H 0.151      
10 H 0.148      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.187 -0.182 0.000 0.261
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.338 0.345 0.000
y 0.345 -21.327 0.000
z 0.000 0.000 -21.197
Traceless
 xyz
x -1.076 0.345 0.000
y 0.345 0.440 0.000
z 0.000 0.000 0.636
Polar
3z2-r21.272
x2-y2-1.011
xy0.345
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.140 -0.098 0.000
y -0.098 5.770 0.000
z 0.000 0.000 6.625


<r2> (average value of r2) Å2
<r2> 62.828
(<r2>)1/2 7.926