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

using model chemistry: PBE1PBE/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-118.336060
Energy at 298.15K-118.342173
HF Energy-118.336060
Nuclear repulsion energy75.470780
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/6-31+G**
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' 3212 3069 24.60      
2 A' 3137 2997 15.71      
3 A' 3063 2926 46.14      
4 A' 2989 2855 44.48      
5 A' 1493 1426 6.16      
6 A' 1480 1414 19.74      
7 A' 1413 1350 5.80      
8 A' 1181 1128 2.80      
9 A' 1024 979 0.12      
10 A' 905 865 2.43      
11 A' 392 374 14.05      
12 A' 346 330 22.06      
13 A' 118 113 1.43      
14 A" 3139 2998 23.66      
15 A" 3063 2926 5.94      
16 A" 2985 2851 29.91      
17 A" 1478 1412 1.38      
18 A" 1470 1404 2.28      
19 A" 1423 1359 11.61      
20 A" 1365 1304 0.72      
21 A" 1169 1116 0.19      
22 A" 942 899 1.25      
23 A" 936 894 0.05      
24 A" 115 110 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 19417.6 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 18549.7 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/6-31+G**
ABC
1.24482 0.27948 0.24950

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.010 0.538 0.000
C2 -0.010 -0.198 1.292
C3 -0.010 -0.198 -1.292
H4 0.208 1.602 0.000
H5 -0.776 -0.986 1.305
H6 -0.776 -0.986 -1.305
H7 0.953 -0.706 1.478
H8 -0.192 0.465 2.143
H9 0.953 -0.706 -1.478
H10 -0.192 0.465 -2.143

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48691.48691.08692.14742.14742.15782.15222.15782.1522
C21.48692.58442.22691.09872.82041.10401.09412.97603.5036
C31.48692.58442.22692.82041.09872.97603.50361.10401.0941
H41.08692.22692.22693.06123.06122.84002.45922.84002.4592
H52.14741.09872.82043.06122.61081.75931.77413.28803.7867
H62.14742.82041.09873.06122.61083.28803.78671.75931.7741
H72.15781.10402.97602.84001.75933.28801.76742.95533.9739
H82.15221.09413.50362.45921.77413.78671.76743.97394.2866
H92.15782.97601.10402.84003.28801.75932.95533.97391.7674
H102.15223.50361.09412.45923.78671.77413.97394.28661.7674

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 111.419 C1 C2 H7 111.933
C1 C2 H8 112.101 C1 C3 H6 111.419
C1 C3 H9 111.933 C1 C3 H10 112.101
C2 C1 C3 120.694 C2 C1 H4 118.992
C3 C1 H4 118.992 H5 C2 H7 106.017
H5 C2 H8 108.010 H6 C3 H9 106.017
H6 C3 H10 108.010 H7 C2 H8 107.040
H9 C3 H10 107.040
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.084      
2 C -0.637      
3 C -0.637      
4 H 0.156      
5 H 0.170      
6 H 0.170      
7 H 0.173      
8 H 0.173      
9 H 0.173      
10 H 0.173      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.201 -0.163 0.000 0.259
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.832 0.377 0.000
y 0.377 -20.761 0.000
z 0.000 0.000 -20.679
Traceless
 xyz
x -1.112 0.377 0.000
y 0.377 0.494 0.000
z 0.000 0.000 0.618
Polar
3z2-r21.235
x2-y2-1.071
xy0.377
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.797 -0.063 0.000
y -0.063 5.382 0.000
z 0.000 0.000 6.063


<r2> (average value of r2) Å2
<r2> 61.455
(<r2>)1/2 7.839