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

using model chemistry: B3PW91/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at B3PW91/cc-pVTZ
 hartrees
Energy at 0K-118.479914
Energy at 298.15K-118.486032
HF Energy-118.479914
Nuclear repulsion energy75.628811
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 B3PW91/cc-pVTZ
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' 3177 3055 25.44      
2 A' 3100 2981 16.26      
3 A' 3028 2912 47.05      
4 A' 2956 2842 47.70      
5 A' 1483 1426 4.66      
6 A' 1471 1414 14.20      
7 A' 1403 1349 4.80      
8 A' 1176 1131 2.78      
9 A' 1023 983 0.09      
10 A' 893 859 2.13      
11 A' 391 376 12.30      
12 A' 351 338 12.87      
13 A' 114 109 0.64      
14 A" 3101 2982 24.74      
15 A" 3028 2912 6.70      
16 A" 2951 2838 26.99      
17 A" 1470 1413 0.76      
18 A" 1461 1404 1.07      
19 A" 1406 1352 9.01      
20 A" 1362 1310 1.44      
21 A" 1156 1112 0.20      
22 A" 940 904 1.10      
23 A" 934 898 0.00      
24 A" 114 110 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19243.9 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 18504.9 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 B3PW91/cc-pVTZ
ABC
1.25699 0.27983 0.25009

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.010 0.533 0.000
C2 -0.010 -0.197 1.292
C3 -0.010 -0.197 -1.292
H4 0.197 1.596 0.000
H5 -0.759 -0.996 1.302
H6 -0.759 -0.996 -1.302
H7 0.957 -0.687 1.489
H8 -0.209 0.465 2.136
H9 0.957 -0.687 -1.489
H10 -0.209 0.465 -2.136

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48341.48341.08332.14332.14332.15392.14662.15392.1466
C21.48342.58312.21951.09572.81531.10141.09112.98433.4966
C31.48342.58312.21952.81531.09572.98433.49661.10141.0911
H41.08332.21952.21953.05433.05432.82972.45142.82972.4514
H52.14331.09572.81533.05432.60361.75361.76963.29083.7756
H62.14332.81531.09573.05432.60363.29083.77561.75361.7696
H72.15391.10142.98432.82971.75363.29081.76152.97813.9783
H82.14661.09113.49662.45141.76963.77561.76153.97834.2724
H92.15392.98431.10142.82973.29081.75362.97813.97831.7615
H102.14663.49661.09112.45143.77561.76963.97834.27241.7615

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 111.521 C1 C2 H7 112.026
C1 C2 H8 112.079 C1 C3 H6 111.521
C1 C3 H9 112.026 C1 C3 H10 112.079
C2 C1 C3 121.068 C2 C1 H4 118.872
C3 C1 H4 118.872 H5 C2 H7 105.914
H5 C2 H8 108.049 H6 C3 H9 105.914
H6 C3 H10 108.049 H7 C2 H8 106.919
H9 C3 H10 106.919
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.156      
2 C -0.245      
3 C -0.245      
4 H 0.109      
5 H 0.088      
6 H 0.088      
7 H 0.085      
8 H 0.095      
9 H 0.085      
10 H 0.095      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.149 -0.122 0.000 0.193
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.490 0.296 0.000
y 0.296 -20.551 0.000
z 0.000 0.000 -20.589
Traceless
 xyz
x -0.920 0.296 0.000
y 0.296 0.488 0.000
z 0.000 0.000 0.432
Polar
3z2-r20.864
x2-y2-0.939
xy0.296
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.776 0.008 0.000
y 0.008 5.520 0.000
z 0.000 0.000 6.520


<r2> (average value of r2) Å2
<r2> 61.194
(<r2>)1/2 7.823