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

using model chemistry: B3LYP/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 B3LYP/6-31+G**
 hartrees
Energy at 0K-118.493539
Energy at 298.15K-118.499638
HF Energy-118.493539
Nuclear repulsion energy75.239040
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 B3LYP/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' 3181 3067 29.16      
2 A' 3100 2989 19.00      
3 A' 3026 2918 53.07      
4 A' 2953 2847 58.36      
5 A' 1495 1442 5.58      
6 A' 1483 1430 16.75      
7 A' 1417 1366 3.95      
8 A' 1179 1137 2.43      
9 A' 1027 990 0.03      
10 A' 886 855 2.01      
11 A' 389 375 12.46      
12 A' 345 332 21.95      
13 A' 115 111 1.50      
14 A" 3101 2990 31.26      
15 A" 3025 2917 8.97      
16 A" 2948 2843 28.55      
17 A" 1481 1428 1.77      
18 A" 1473 1420 0.93      
19 A" 1416 1365 7.68      
20 A" 1368 1319 3.18      
21 A" 1149 1107 0.36      
22 A" 945 911 1.13      
23 A" 939 905 0.01      
24 A" 115 111 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 19277.8 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 18587.7 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 B3LYP/6-31+G**
ABC
1.24332 0.27676 0.24728

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.010 0.537 0.000
C2 -0.010 -0.198 1.299
C3 -0.010 -0.198 -1.299
H4 0.203 1.604 0.000
H5 -0.776 -0.987 1.316
H6 -0.776 -0.987 -1.316
H7 0.954 -0.706 1.487
H8 -0.191 0.468 2.149
H9 0.954 -0.706 -1.487
H10 -0.191 0.468 -2.149

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49301.49301.08712.15442.15442.16482.15732.16482.1573
C21.49302.59842.23151.09952.83671.10521.09472.99163.5162
C31.49302.59842.23152.83671.09952.99163.51621.10521.0947
H41.08712.23152.23153.06583.06582.84792.46192.84792.4619
H52.15441.09952.83673.06582.63151.76021.77543.30543.8026
H62.15442.83671.09953.06582.63153.30543.80261.76021.7754
H72.16481.10522.99162.84791.76023.30541.76842.97433.9885
H82.15731.09473.51622.46191.77543.80261.76843.98854.2971
H92.16482.99161.10522.84793.30541.76022.97433.98851.7684
H102.15733.51621.09472.46193.80261.77543.98854.29711.7684

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 111.502 C1 C2 H7 111.994
C1 C2 H8 112.034 C1 C3 H6 111.502
C1 C3 H9 111.994 C1 C3 H10 112.034
C2 C1 C3 120.957 C2 C1 H4 118.896
C3 C1 H4 118.896 H5 C2 H7 105.959
H5 C2 H8 108.026 H6 C3 H9 105.959
H6 C3 H10 108.026 H7 C2 H8 107.001
H9 C3 H10 107.001
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.098      
2 C -0.566      
3 C -0.566      
4 H 0.131      
5 H 0.148      
6 H 0.148      
7 H 0.152      
8 H 0.151      
9 H 0.152      
10 H 0.151      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.195 -0.163 0.000 0.254
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.033 0.363 0.000
y 0.363 -21.034 0.000
z 0.000 0.000 -20.960
Traceless
 xyz
x -1.036 0.363 0.000
y 0.363 0.463 0.000
z 0.000 0.000 0.573
Polar
3z2-r21.146
x2-y2-0.999
xy0.363
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.890 -0.074 0.000
y -0.074 5.476 0.000
z 0.000 0.000 6.190


<r2> (average value of r2) Å2
<r2> 62.001
(<r2>)1/2 7.874