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

using model chemistry: ROHF/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 ROHF/6-31G**
 hartrees
Energy at 0K-117.643134
Energy at 298.15K-117.649649
HF Energy-117.643134
Nuclear repulsion energy75.474126
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 ROHF/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' 3313 2832 51.62      
2 A' 3245 2773 36.14      
3 A' 3208 2742 74.97      
4 A' 3146 2688 48.48      
5 A' 1622 1386 3.28      
6 A' 1618 1383 9.68      
7 A' 1554 1328 2.40      
8 A' 1283 1097 2.21      
9 A' 1147 980 0.36      
10 A' 930 795 1.46      
11 A' 535 457 17.10      
12 A' 382 326 1.66      
13 A' 183 156 0.15      
14 A" 3245 2773 35.01      
15 A" 3205 2739 8.57      
16 A" 3141 2684 32.17      
17 A" 1614 1380 0.31      
18 A" 1606 1372 1.09      
19 A" 1554 1328 4.79      
20 A" 1483 1267 5.62      
21 A" 1209 1033 0.04      
22 A" 1023 875 0.12      
23 A" 1012 865 0.56      
24 A" 143 122 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20700.2 cm-1
Scaled (by 0.8546) Zero Point Vibrational Energy (zpe) 17690.4 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 ROHF/6-31G**
ABC
1.24261 0.27787 0.24866

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.018 0.551 0.000
C2 -0.018 -0.201 1.298
C3 -0.018 -0.201 -1.298
H4 0.425 1.534 0.000
H5 -0.782 -0.975 1.302
H6 -0.782 -0.975 -1.302
H7 0.938 -0.696 1.476
H8 -0.204 0.458 2.140
H9 0.938 -0.696 -1.476
H10 -0.204 0.458 -2.140

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.50001.50001.07792.14662.14662.15592.14962.15592.1496
C21.50002.59522.21151.08702.81791.09131.08522.97533.5047
C31.50002.59522.21152.81791.08702.97533.50471.09131.0852
H41.07792.21152.21153.07343.07342.72252.47612.72252.4761
H52.14661.08702.81793.07342.60441.75141.75723.27963.7726
H62.14662.81791.08703.07342.60443.27963.77261.75141.7572
H72.15591.09132.97532.72251.75143.27961.75362.95213.9632
H82.14961.08523.50472.47611.75723.77261.75363.96324.2791
H92.15592.97531.09132.72253.27961.75142.95213.96321.7536
H102.14963.50471.08522.47613.77261.75723.96324.27911.7536

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 111.141 C1 C2 H7 111.631
C1 C2 H8 111.496 C1 C3 H6 111.141
C1 C3 H9 111.631 C1 C3 H10 111.496
C2 C1 C3 119.781 C2 C1 H4 117.210
C3 C1 H4 117.210 H5 C2 H7 107.022
H5 C2 H8 107.980 H6 C3 H9 107.022
H6 C3 H10 107.980 H7 C2 H8 107.351
H9 C3 H10 107.351
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.111      
2 C -0.350      
3 C -0.350      
4 H 0.114      
5 H 0.115      
6 H 0.115      
7 H 0.114      
8 H 0.119      
9 H 0.114      
10 H 0.119      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.249 -0.109 0.000 0.272
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.350 0.505 -0.000
y 0.505 -20.805 0.001
z -0.000 0.001 -20.879
Traceless
 xyz
x -0.508 0.505 -0.000
y 0.505 0.309 0.001
z -0.000 0.001 0.199
Polar
3z2-r20.397
x2-y2-0.545
xy0.505
xz-0.000
yz0.001


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> 61.436
(<r2>)1/2 7.838