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

using model chemistry: B3LYP/6-31G**

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/6-31G**
 hartrees
Energy at 0K-118.488221
Energy at 298.15K-118.494383
HF Energy-118.488221
Nuclear repulsion energy75.262627
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/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3178 3054 32.21      
2 A' 3103 2981 22.37      
3 A' 3041 2922 52.01      
4 A' 2958 2842 52.33      
5 A' 1505 1446 3.06      
6 A' 1494 1436 10.53      
7 A' 1426 1370 2.49      
8 A' 1184 1138 3.14      
9 A' 1038 997 0.30      
10 A' 888 853 1.67      
11 A' 410 394 14.64      
12 A' 361 347 7.72      
13 A' 127 122 0.14      
14 A" 3104 2982 27.37      
15 A" 3040 2920 8.68      
16 A" 2953 2837 26.83      
17 A" 1493 1435 0.37      
18 A" 1484 1425 0.95      
19 A" 1423 1367 5.11      
20 A" 1377 1323 5.05      
21 A" 1154 1109 0.08      
22 A" 946 909 1.59      
23 A" 942 905 0.02      
24 A" 116 112 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 19372.0 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 18612.6 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/6-31G**
ABC
1.25000 0.27629 0.24723

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.011 0.535 0.000
C2 -0.011 -0.197 1.300
C3 -0.011 -0.197 -1.300
H4 0.239 1.593 0.000
H5 -0.737 -1.022 1.298
H6 -0.737 -1.022 -1.298
H7 0.970 -0.655 1.521
H8 -0.250 0.461 2.141
H9 0.970 -0.655 -1.521
H10 -0.250 0.461 -2.141

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49201.49201.08722.15292.15292.16632.15602.16632.1560
C21.49202.59982.22661.09842.82021.10491.09483.02193.5119
C31.49202.59982.22662.82021.09843.02193.51191.10491.0948
H41.08722.22662.22663.07823.07822.81082.47112.81082.4711
H52.15291.09842.82023.07822.59541.75981.77463.31573.7769
H62.15292.82021.09843.07822.59543.31573.77691.75981.7746
H72.16631.10493.02192.81081.75983.31571.76543.04294.0186
H82.15601.09483.51192.47111.77463.77691.76544.01864.2830
H92.16633.02191.10492.81083.31571.75983.04294.01861.7654
H102.15603.51191.09482.47113.77691.77464.01864.28301.7654

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 111.523 C1 C2 H7 112.203
C1 C2 H8 111.995 C1 C3 H6 111.523
C1 C3 H9 112.203 C1 C3 H10 111.995
C2 C1 C3 121.204 C2 C1 H4 118.532
C3 C1 H4 118.532 H5 C2 H7 106.012
H5 C2 H8 108.024 H6 C3 H9 106.012
H6 C3 H10 108.024 H7 C2 H8 106.748
H9 C3 H10 106.748
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.071      
2 C -0.334      
3 C -0.334      
4 H 0.087      
5 H 0.107      
6 H 0.107      
7 H 0.109      
8 H 0.109      
9 H 0.109      
10 H 0.109      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.166 -0.119 0.000 0.205
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.247 0.296 0.000
y 0.296 -20.344 0.000
z 0.000 0.000 -20.308
Traceless
 xyz
x -0.921 0.296 0.000
y 0.296 0.433 0.000
z 0.000 0.000 0.488
Polar
3z2-r20.976
x2-y2-0.903
xy0.296
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.985 0.063 0.000
y 0.063 4.849 0.000
z 0.000 0.000 5.646


<r2> (average value of r2) Å2
<r2> 61.578
(<r2>)1/2 7.847