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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G**
 hartrees
Energy at 0K-118.303775
Energy at 298.15K-118.309871
HF Energy-118.303775
Nuclear repulsion energy75.057675
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 PBEPBEultrafine/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' 3118 3076 29.31      
2 A' 3049 3007 17.73      
3 A' 2980 2939 46.97      
4 A' 2892 2852 47.01      
5 A' 1456 1436 3.54      
6 A' 1442 1422 12.21      
7 A' 1373 1354 3.40      
8 A' 1146 1130 3.55      
9 A' 1000 986 0.88      
10 A' 880 868 2.16      
11 A' 403 398 17.06      
12 A' 356 351 6.85      
13 A' 121 120 0.09      
14 A" 3050 3008 22.61      
15 A" 2979 2939 7.99      
16 A" 2886 2846 31.00      
17 A" 1443 1423 0.22      
18 A" 1431 1412 1.46      
19 A" 1376 1357 7.73      
20 A" 1330 1311 2.76      
21 A" 1141 1125 0.16      
22 A" 912 900 2.00      
23 A" 908 896 0.15      
24 A" 116 114 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 18892.6 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 18633.8 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 PBEPBEultrafine/6-31G**
ABC
1.24082 0.27577 0.24666

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/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 0.228 1.603 0.000
H5 -0.730 -1.038 1.293
H6 -0.730 -1.038 -1.293
H7 0.979 -0.649 1.532
H8 -0.263 0.461 2.148
H9 0.979 -0.649 -1.532
H10 -0.263 0.461 -2.148

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49151.49151.09512.15912.15912.17492.16352.17492.1635
C21.49152.59952.23321.10632.81921.11341.10233.03423.5186
C31.49152.59952.23322.81921.10633.03423.51861.11341.1023
H41.09512.23322.23323.09283.09282.82592.48152.82592.4815
H52.15911.10632.81923.09282.58661.76941.78723.32533.7821
H62.15912.81921.10633.09282.58663.32533.78211.76941.7872
H72.17491.11343.03422.82591.76943.32531.77593.06474.0395
H82.16351.10233.51862.48151.78723.78211.77594.03954.2952
H92.17493.03421.11342.82593.32531.76943.06474.03951.7759
H102.16353.51861.10232.48153.78211.78724.03954.29521.7759

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 111.575 C1 C2 H7 112.409
C1 C2 H8 112.182 C1 C3 H6 111.575
C1 C3 H9 112.409 C1 C3 H10 112.182
C2 C1 C3 121.255 C2 C1 H4 118.598
C3 C1 H4 118.598 H5 C2 H7 105.713
H5 C2 H8 108.039 H6 C3 H9 105.713
H6 C3 H10 108.039 H7 C2 H8 106.546
H9 C3 H10 106.546
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.079      
2 C -0.388      
3 C -0.388      
4 H 0.100      
5 H 0.124      
6 H 0.124      
7 H 0.126      
8 H 0.126      
9 H 0.126      
10 H 0.126      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.169 -0.143 0.000 0.221
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.282 0.289 0.000
y 0.289 -20.267 0.000
z 0.000 0.000 -20.137
Traceless
 xyz
x -1.080 0.289 0.000
y 0.289 0.442 0.000
z 0.000 0.000 0.638
Polar
3z2-r21.276
x2-y2-1.014
xy0.289
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.068 0.051 0.000
y 0.051 4.988 0.000
z 0.000 0.000 5.937


<r2> (average value of r2) Å2
<r2> 61.729
(<r2>)1/2 7.857