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

using model chemistry: ROMP2/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at ROMP2/6-31G**
 hartrees
Energy at 0K-118.062016
Energy at 298.15K-118.068325
HF Energy-117.642771
Nuclear repulsion energy75.602239
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 ROMP2/6-31G**
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' 3282 3282        
2 A' 3218 3218        
3 A' 3165 3165        
4 A' 3080 3080        
5 A' 1554 1554        
6 A' 1544 1544        
7 A' 1470 1470        
8 A' 1222 1222        
9 A' 1079 1079        
10 A' 919 919        
11 A' 441 441        
12 A' 367 367        
13 A' 159 159        
14 A" 3219 3219        
15 A" 3165 3165        
16 A" 3078 3078        
17 A" 1545 1545        
18 A" 1533 1533        
19 A" 1475 1475        
20 A" 1419 1419        
21 A" 1195 1195        
22 A" 975 975        
23 A" 965 965        
24 A" 125 125        

Unscaled Zero Point Vibrational Energy (zpe) 20096.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 20096.2 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 ROMP2/6-31G**
ABC
1.24559 0.28002 0.25015

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.014 0.543 0.000
C2 -0.014 -0.200 1.292
C3 -0.014 -0.200 -1.292
H4 0.311 1.575 0.000
H5 -0.759 -0.997 1.285
H6 -0.759 -0.997 -1.285
H7 0.954 -0.677 1.488
H8 -0.227 0.456 2.134
H9 0.954 -0.677 -1.488
H10 -0.227 0.456 -2.134

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49051.49051.08132.13982.13982.15372.14692.15372.1469
C21.49052.58392.21901.09142.79821.09661.08892.98173.4951
C31.49052.58392.21902.79821.09142.98173.49511.09661.0889
H41.08132.21902.21903.06743.06742.77402.46932.77402.4693
H52.13981.09142.79823.06742.56941.75531.76513.27503.7529
H62.13982.79821.09143.06742.56943.27503.75291.75531.7651
H72.15371.09662.98172.77401.75533.27501.75992.97543.9748
H82.14691.08893.49512.46931.76513.75291.75993.97484.2689
H92.15372.98171.09662.77403.27501.75532.97543.97481.7599
H102.14693.49511.08892.46933.75291.76513.97484.26891.7599

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 110.998 C1 C2 H7 111.806
C1 C2 H8 111.733 C1 C3 H6 110.998
C1 C3 H9 111.806 C1 C3 H10 111.733
C2 C1 C3 120.176 C2 C1 H4 118.401
C3 C1 H4 118.401 H5 C2 H7 106.680
H5 C2 H8 108.110 H6 C3 H9 106.680
H6 C3 H10 108.110 H7 C2 H8 107.272
H9 C3 H10 107.272
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROMP2/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.117      
2 C -0.347      
3 C -0.347      
4 H 0.118      
5 H 0.115      
6 H 0.115      
7 H 0.113      
8 H 0.119      
9 H 0.113      
10 H 0.119      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 61.223
(<r2>)1/2 7.825