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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-118.294245
Energy at 298.15K-118.300348
HF Energy-118.294245
Nuclear repulsion energy74.997341
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' 3116 3065 31.83      
2 A' 3045 2994 18.74      
3 A' 2978 2929 47.68      
4 A' 2889 2841 50.46      
5 A' 1475 1450 4.22      
6 A' 1460 1436 13.13      
7 A' 1391 1368 3.32      
8 A' 1155 1136 3.70      
9 A' 1012 996 0.98      
10 A' 882 868 2.14      
11 A' 405 398 17.86      
12 A' 356 350 7.24      
13 A' 122 120 0.07      
14 A" 3046 2995 24.33      
15 A" 2978 2928 8.99      
16 A" 2883 2835 31.16      
17 A" 1462 1438 0.52      
18 A" 1450 1426 1.31      
19 A" 1389 1366 6.98      
20 A" 1344 1322 3.58      
21 A" 1146 1127 0.14      
22 A" 922 906 2.29      
23 A" 917 902 0.00      
24 A" 117 115 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 18968.3 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 18655.4 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
1.24022 0.27521 0.24628

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 0.534 0.000
C2 -0.011 -0.197 1.301
C3 -0.011 -0.197 -1.301
H4 0.235 1.602 0.000
H5 -0.728 -1.041 1.294
H6 -0.728 -1.041 -1.294
H7 0.982 -0.645 1.537
H8 -0.269 0.463 2.148
H9 0.982 -0.645 -1.537
H10 -0.269 0.463 -2.148

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49221.49221.09582.16072.16072.17692.16452.17692.1645
C21.49222.60192.23351.10752.82121.11481.10373.04003.5208
C31.49222.60192.23352.82121.10753.04003.52081.11481.1037
H41.09582.23352.23353.09623.09622.82282.48302.82282.4830
H52.16071.10752.82123.09622.58761.77211.78933.33103.7838
H62.16072.82121.10753.09622.58763.33103.78381.77211.7893
H72.17691.11483.04002.82281.77213.33101.77833.07444.0459
H82.16451.10373.52082.48301.78933.78381.77834.04594.2959
H92.17693.04001.11482.82283.33101.77213.07444.04591.7783
H102.16453.52081.10372.48303.78381.78934.04594.29591.7783

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 111.574 C1 C2 H7 112.432
C1 C2 H8 112.114 C1 C3 H6 111.574
C1 C3 H9 112.432 C1 C3 H10 112.114
C2 C1 C3 121.343 C2 C1 H4 118.509
C3 C1 H4 118.509 H5 C2 H7 105.767
H5 C2 H8 108.027 H6 C3 H9 105.767
H6 C3 H10 108.027 H7 C2 H8 106.556
H9 C3 H10 106.556
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 -0.091      
2 C -0.512      
3 C -0.512      
4 H 0.137      
5 H 0.162      
6 H 0.162      
7 H 0.163      
8 H 0.165      
9 H 0.163      
10 H 0.165      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.176 -0.131 0.000 0.219
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.285 0.305 0.000
y 0.305 -20.255 0.000
z 0.000 0.000 -20.183
Traceless
 xyz
x -1.066 0.305 0.000
y 0.305 0.479 0.000
z 0.000 0.000 0.587
Polar
3z2-r21.174
x2-y2-1.030
xy0.305
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.001 0.051 0.000
y 0.051 4.914 0.000
z 0.000 0.000 5.846


<r2> (average value of r2) Å2
<r2> 61.820
(<r2>)1/2 7.863