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

using model chemistry: ROHF/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-117.672399
Energy at 298.15K-117.678947
HF Energy-117.672399
Nuclear repulsion energy75.618848
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/6-311+G(3df,2p)
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 2981 45.74      
2 A' 3212 2918 31.72      
3 A' 3175 2885 58.96      
4 A' 3115 2830 56.83      
5 A' 1609 1461 5.39      
6 A' 1606 1459 12.67      
7 A' 1540 1399 2.66      
8 A' 1276 1159 2.01      
9 A' 1142 1037 0.52      
10 A' 923 839 1.56      
11 A' 540 491 19.57      
12 A' 381 346 1.57      
13 A' 192 174 0.10      
14 A" 3213 2919 35.78      
15 A" 3172 2882 10.22      
16 A" 3110 2825 27.61      
17 A" 1600 1454 0.58      
18 A" 1593 1448 0.93      
19 A" 1538 1397 5.36      
20 A" 1473 1338 4.65      
21 A" 1200 1090 0.00      
22 A" 1016 923 0.27      
23 A" 1006 914 0.43      
24 A" 149 135 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20529.7 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 18651.2 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 ROHF/6-311+G(3df,2p)
ABC
1.24540 0.27920 0.24978

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.019 0.551 0.000
C2 -0.019 -0.201 1.295
C3 -0.019 -0.201 -1.295
H4 0.426 1.531 0.000
H5 -0.788 -0.967 1.302
H6 -0.788 -0.967 -1.302
H7 0.934 -0.703 1.464
H8 -0.192 0.457 2.137
H9 0.934 -0.703 -1.464
H10 -0.192 0.457 -2.137

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49721.49721.07602.14272.14272.15022.14622.15022.1462
C21.49722.58922.20751.08522.81451.09011.08332.96113.4986
C31.49722.58922.20752.81451.08522.96113.49861.09011.0833
H41.07602.20752.20753.06723.06722.71872.47012.71872.4701
H52.14271.08522.81453.06722.60471.74911.75523.26873.7701
H62.14272.81451.08523.06722.60473.26873.77011.74911.7552
H72.15021.09012.96112.71871.74913.26871.75142.92753.9472
H82.14621.08333.49862.47011.75523.77011.75143.94724.2743
H92.15022.96111.09012.71873.26871.74912.92753.94721.7514
H102.14623.49861.08332.47013.77011.75523.94724.27431.7514

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 111.138 C1 C2 H7 111.446
C1 C2 H8 111.541 C1 C3 H6 111.138
C1 C3 H9 111.446 C1 C3 H10 111.541
C2 C1 C3 119.689 C2 C1 H4 117.219
C3 C1 H4 117.219 H5 C2 H7 107.040
H5 C2 H8 108.076 H6 C3 H9 107.040
H6 C3 H10 108.076 H7 C2 H8 107.387
H9 C3 H10 107.387
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.227      
2 C -0.321      
3 C -0.321      
4 H 0.113      
5 H 0.131      
6 H 0.131      
7 H 0.134      
8 H 0.112      
9 H 0.134      
10 H 0.112      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.300 -0.152 0.000 0.336
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.529 0.607 -0.000
y 0.607 -21.008 0.001
z -0.000 0.001 -20.971
Traceless
 xyz
x -0.539 0.607 -0.000
y 0.607 0.242 0.001
z -0.000 0.001 0.298
Polar
3z2-r20.595
x2-y2-0.521
xy0.607
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> 61.320
(<r2>)1/2 7.831