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

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-118.435715
Energy at 298.15K-118.441872
HF Energy-118.435715
Nuclear repulsion energy75.324977
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 B3PW91/6-31G*
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' 3195 3056 32.26      
2 A' 3121 2986 20.93      
3 A' 3060 2927 50.70      
4 A' 2978 2849 46.74      
5 A' 1518 1453 4.35      
6 A' 1506 1441 13.87      
7 A' 1437 1375 3.56      
8 A' 1190 1139 3.74      
9 A' 1044 998 0.64      
10 A' 899 860 1.99      
11 A' 409 392 16.85      
12 A' 359 344 9.32      
13 A' 127 122 0.14      
14 A" 3122 2987 25.11      
15 A" 3059 2926 8.08      
16 A" 2972 2844 29.49      
17 A" 1506 1441 0.69      
18 A" 1495 1430 1.39      
19 A" 1436 1373 7.31      
20 A" 1384 1324 3.23      
21 A" 1169 1119 0.06      
22 A" 951 910 1.58      
23 A" 946 905 0.30      
24 A" 115 110 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 19499.1 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 18654.8 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 B3PW91/6-31G*
ABC
1.25145 0.27703 0.24793

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

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 1.298
C3 -0.011 -0.197 -1.298
H4 0.242 1.592 0.000
H5 -0.737 -1.023 1.295
H6 -0.737 -1.023 -1.295
H7 0.971 -0.653 1.521
H8 -0.252 0.462 2.139
H9 0.971 -0.653 -1.521
H10 -0.252 0.462 -2.139

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48941.48941.08782.15102.15102.16452.15392.16452.1539
C21.48942.59552.22441.09912.81651.10541.09583.01913.5079
C31.48942.59552.22442.81651.09913.01913.50791.10541.0958
H41.08782.22442.22443.07743.07742.80762.46892.80762.4689
H52.15101.09912.81653.07742.59091.76171.77533.31403.7732
H62.15102.81651.09913.07742.59093.31403.77321.76171.7753
H72.16451.10543.01912.80761.76173.31401.76703.04114.0166
H82.15391.09583.50792.46891.77533.77321.76704.01664.2784
H92.16453.01911.10542.80763.31401.76173.04114.01661.7670
H102.15393.50791.09582.46893.77321.77534.01664.27841.7670

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 111.510 C1 C2 H7 112.215
C1 C2 H8 111.952 C1 C3 H6 111.510
C1 C3 H9 112.215 C1 C3 H10 111.952
C2 C1 C3 121.231 C2 C1 H4 118.503
C3 C1 H4 118.503 H5 C2 H7 106.089
H5 C2 H8 107.961 H6 C3 H9 106.089
H6 C3 H10 107.961 H7 C2 H8 106.783
H9 C3 H10 106.783
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.115      
2 C -0.536      
3 C -0.536      
4 H 0.154      
5 H 0.171      
6 H 0.171      
7 H 0.171      
8 H 0.174      
9 H 0.171      
10 H 0.174      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.179 -0.114 0.000 0.212
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.155 0.326 0.000
y 0.326 -20.142 0.000
z 0.000 0.000 -20.156
Traceless
 xyz
x -1.006 0.326 0.000
y 0.326 0.513 0.000
z 0.000 0.000 0.493
Polar
3z2-r20.986
x2-y2-1.013
xy0.326
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.932 0.062 0.000
y 0.062 4.783 0.000
z 0.000 0.000 5.547


<r2> (average value of r2) Å2
<r2> 61.376
(<r2>)1/2 7.834