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

using model chemistry: PBE1PBE/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 PBE1PBE/6-311G**
 hartrees
Energy at 0K-118.354468
Energy at 298.15K-118.360600
HF Energy-118.354468
Nuclear repulsion energy75.561756
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 PBE1PBE/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' 3190 3061 27.34      
2 A' 3118 2992 17.75      
3 A' 3049 2925 52.02      
4 A' 2973 2852 47.87      
5 A' 1487 1427 5.02      
6 A' 1475 1415 18.02      
7 A' 1405 1348 6.05      
8 A' 1177 1130 2.99      
9 A' 1024 982 0.23      
10 A' 901 865 2.45      
11 A' 397 381 14.46      
12 A' 353 339 13.68      
13 A' 121 116 0.53      
14 A" 3120 2993 24.61      
15 A" 3049 2925 6.08      
16 A" 2968 2848 28.06      
17 A" 1473 1414 0.86      
18 A" 1464 1405 2.35      
19 A" 1413 1356 11.00      
20 A" 1360 1305 0.61      
21 A" 1166 1118 0.12      
22 A" 938 900 1.37      
23 A" 934 896 0.04      
24 A" 111 106 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 19332.5 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 18547.6 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 PBE1PBE/6-311G**
ABC
1.25095 0.27984 0.25002

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/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 1.291
C3 -0.010 -0.197 -1.291
H4 0.218 1.597 0.000
H5 -0.757 -1.002 1.296
H6 -0.757 -1.002 -1.296
H7 0.961 -0.681 1.492
H8 -0.219 0.462 2.138
H9 0.961 -0.681 -1.492
H10 -0.219 0.462 -2.138

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48461.48461.08552.14472.14472.15562.14912.15562.1491
C21.48462.58242.22201.09742.81031.10321.09302.98683.4980
C31.48462.58242.22202.81031.09742.98683.49801.10321.0930
H41.08552.22202.22203.06293.06292.82192.45922.82192.4592
H52.14471.09742.81033.06292.59201.75811.77253.28983.7714
H62.14472.81031.09743.06292.59203.28983.77141.75811.7725
H72.15561.10322.98682.82191.75813.28981.76472.98313.9835
H82.14911.09303.49802.45921.77253.77141.76473.98354.2755
H92.15562.98681.10322.82193.28981.75812.98313.98351.7647
H102.14913.49801.09302.45923.77141.77253.98354.27551.7647

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 111.448 C1 C2 H7 111.975
C1 C2 H8 112.080 C1 C3 H6 111.448
C1 C3 H9 111.975 C1 C3 H10 112.080
C2 C1 C3 120.857 C2 C1 H4 118.848
C3 C1 H4 118.848 H5 C2 H7 106.052
H5 C2 H8 108.031 H6 C3 H9 106.052
H6 C3 H10 108.031 H7 C2 H8 106.933
H9 C3 H10 106.933
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.209      
2 C -0.339      
3 C -0.339      
4 H 0.125      
5 H 0.125      
6 H 0.125      
7 H 0.127      
8 H 0.129      
9 H 0.127      
10 H 0.129      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.173 -0.122 0.000 0.211
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.579 0.331 0.000
y 0.331 -20.539 0.000
z 0.000 0.000 -20.581
Traceless
 xyz
x -1.019 0.331 0.000
y 0.331 0.540 0.000
z 0.000 0.000 0.478
Polar
3z2-r20.956
x2-y2-1.039
xy0.331
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.418 0.027 0.000
y 0.027 5.201 0.000
z 0.000 0.000 6.063


<r2> (average value of r2) Å2
<r2> 61.242
(<r2>)1/2 7.826