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

using model chemistry: HF/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 HF/6-31G**
 hartrees
Energy at 0K-117.647491
Energy at 298.15K-117.653899
HF Energy-117.647491
Nuclear repulsion energy75.427293
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 HF/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' 3311 2989 47.30      
2 A' 3245 2929 34.79      
3 A' 3203 2891 72.37      
4 A' 3133 2828 55.63      
5 A' 1621 1463 3.07      
6 A' 1616 1458 9.57      
7 A' 1551 1400 2.16      
8 A' 1280 1155 2.21      
9 A' 1133 1023 0.22      
10 A' 927 836 1.55      
11 A' 472 426 16.04      
12 A' 376 339 3.76      
13 A' 165 149 0.16      
14 A" 3245 2929 36.30      
15 A" 3199 2888 9.94      
16 A" 3128 2824 30.06      
17 A" 1612 1455 0.37      
18 A" 1604 1448 1.04      
19 A" 1550 1399 4.28      
20 A" 1480 1336 5.92      
21 A" 1206 1088 0.14      
22 A" 1027 927 0.18      
23 A" 1013 914 0.42      
24 A" 130 117 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20612.1 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 18604.5 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 HF/6-31G**
ABC
1.24839 0.27679 0.24769

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.015 0.545 0.000
C2 -0.015 -0.201 1.301
C3 -0.015 -0.201 -1.301
H4 0.347 1.560 0.000
H5 -0.764 -0.989 1.302
H6 -0.764 -0.989 -1.302
H7 0.949 -0.677 1.492
H8 -0.221 0.458 2.138
H9 0.949 -0.677 -1.492
H10 -0.221 0.458 -2.138

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49941.49941.07802.14692.14692.15642.14952.15642.1495
C21.49942.60162.21921.08732.82081.09201.08522.99303.5073
C31.49942.60162.21922.82081.08732.99303.50731.09201.0852
H41.07802.21922.21923.07073.07072.75632.47142.75632.4714
H52.14691.08732.82083.07072.60411.75091.75743.29223.7713
H62.14692.82081.08733.07072.60413.29223.77131.75091.7574
H72.15641.09202.99302.75631.75093.29221.75362.98493.9796
H82.14951.08523.50732.47141.75743.77131.75363.97964.2757
H92.15642.99301.09202.75633.29221.75092.98493.97961.7536
H102.14953.50731.08522.47143.77131.75743.97964.27571.7536

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 111.202 C1 C2 H7 111.670
C1 C2 H8 111.541 C1 C3 H6 111.202
C1 C3 H9 111.670 C1 C3 H10 111.541
C2 C1 C3 120.355 C2 C1 H4 117.936
C3 C1 H4 117.936 H5 C2 H7 106.913
H5 C2 H8 107.985 H6 C3 H9 106.913
H6 C3 H10 107.985 H7 C2 H8 107.301
H9 C3 H10 107.301
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.114      
2 C -0.349      
3 C -0.349      
4 H 0.115      
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
  0.205 -0.080 0.000 0.220
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.393 0.429 0.000
y 0.429 -20.704 0.000
z 0.000 0.000 -20.860
Traceless
 xyz
x -0.611 0.429 0.000
y 0.429 0.422 0.000
z 0.000 0.000 0.188
Polar
3z2-r20.377
x2-y2-0.689
xy0.429
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.917 0.132 0.000
y 0.132 4.609 0.000
z 0.000 0.000 5.124


<r2> (average value of r2) Å2
<r2> 61.582
(<r2>)1/2 7.847