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

using model chemistry: TPSSh/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 TPSSh/6-31G
 hartrees
Energy at 0K-118.461968
Energy at 298.15K-118.468109
HF Energy-118.461968
Nuclear repulsion energy75.030105
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 TPSSh/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' 3186 3065 42.90      
2 A' 3110 2992 24.79      
3 A' 3040 2925 71.62      
4 A' 2963 2851 61.44      
5 A' 1548 1489 4.32      
6 A' 1536 1477 14.58      
7 A' 1466 1411 3.70      
8 A' 1213 1167 4.67      
9 A' 1063 1022 0.90      
10 A' 891 857 1.64      
11 A' 397 382 16.60      
12 A' 358 345 13.62      
13 A' 111 107 0.50      
14 A" 3111 2993 36.76      
15 A" 3039 2924 8.74      
16 A" 2957 2845 33.02      
17 A" 1535 1477 1.69      
18 A" 1526 1468 0.67      
19 A" 1451 1396 3.88      
20 A" 1405 1352 8.26      
21 A" 1169 1125 0.35      
22 A" 980 943 1.04      
23 A" 968 931 0.49      
24 A" 111 107 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 19565.4 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 18823.9 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 TPSSh/6-31G
ABC
1.24033 0.27440 0.24535

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.009 0.538 0.000
C2 -0.009 -0.199 1.306
C3 -0.009 -0.199 -1.306
H4 0.195 1.607 0.000
H5 -0.750 -1.012 1.306
H6 -0.750 -1.012 -1.306
H7 0.968 -0.672 1.516
H8 -0.232 0.464 2.148
H9 0.968 -0.672 -1.516
H10 -0.232 0.464 -2.148

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49941.49941.08792.15762.15762.17182.16072.17182.1607
C21.49942.61112.23781.09952.83341.10551.09533.02303.5237
C31.49942.61112.23782.83341.09953.02303.52371.10551.0953
H41.08792.23782.23783.07453.07452.84422.46992.84422.4699
H52.15761.09952.83343.07452.61151.76371.77653.32093.7914
H62.15762.83341.09953.07452.61153.32093.79141.76371.7765
H72.17181.10553.02302.84421.76373.32091.76953.03184.0194
H82.16071.09533.52372.46991.77653.79141.76954.01944.2958
H92.17183.02301.10552.84423.32091.76373.03184.01941.7695
H102.16073.52371.09532.46993.79141.77654.01944.29581.7695

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 111.308 C1 C2 H7 112.090
C1 C2 H8 111.821 C1 C3 H6 111.308
C1 C3 H9 112.090 C1 C3 H10 111.821
C2 C1 C3 121.091 C2 C1 H4 118.884
C3 C1 H4 118.884 H5 C2 H7 106.230
H5 C2 H8 108.068 H6 C3 H9 106.230
H6 C3 H10 108.068 H7 C2 H8 107.031
H9 C3 H10 107.031
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.093      
2 C -0.486      
3 C -0.486      
4 H 0.139      
5 H 0.154      
6 H 0.154      
7 H 0.154      
8 H 0.155      
9 H 0.154      
10 H 0.155      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.161 -0.118 0.000 0.200
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.872 0.043 0.000
y 0.043 4.782 0.000
z 0.000 0.000 5.465


<r2> (average value of r2) Å2
<r2> 61.902
(<r2>)1/2 7.868