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

using model chemistry: HF/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 HF/6-311+G(3df,2p)
 hartrees
Energy at 0K-117.677056
Energy at 298.15K-117.683497
HF Energy-117.677056
Nuclear repulsion energy75.576004
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/6-311+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' 3281 2981 42.23      
2 A' 3211 2918 30.53      
3 A' 3170 2881 58.47      
4 A' 3101 2818 62.15      
5 A' 1607 1460 5.23      
6 A' 1603 1457 12.49      
7 A' 1537 1396 2.60      
8 A' 1272 1156 2.00      
9 A' 1128 1025 0.44      
10 A' 920 836 1.63      
11 A' 476 433 19.08      
12 A' 375 341 3.55      
13 A' 173 157 0.09      
14 A" 3212 2919 37.30      
15 A" 3167 2877 11.04      
16 A" 3096 2813 25.99      
17 A" 1598 1452 0.66      
18 A" 1591 1446 0.90      
19 A" 1534 1394 4.87      
20 A" 1470 1336 4.90      
21 A" 1196 1087 0.03      
22 A" 1019 926 0.30      
23 A" 1006 914 0.27      
24 A" 135 123 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20440.6 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 18572.3 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/6-311+G(3df,2p)
ABC
1.25101 0.27818 0.24887

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.016 0.545 0.000
C2 -0.016 -0.201 1.298
C3 -0.016 -0.201 -1.298
H4 0.352 1.556 0.000
H5 -0.773 -0.979 1.303
H6 -0.773 -0.979 -1.303
H7 0.943 -0.689 1.478
H8 -0.205 0.459 2.136
H9 0.943 -0.689 -1.478
H10 -0.205 0.459 -2.136

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49651.49651.07602.14312.14312.15072.14602.15072.1460
C21.49652.59512.21481.08552.81831.09081.08322.97683.5013
C31.49652.59512.21482.81831.08552.97683.50131.09081.0832
H41.07602.21482.21483.06413.06412.75222.46512.75222.4651
H52.14311.08552.81833.06412.60661.74851.75533.28073.7704
H62.14312.81831.08553.06412.60663.28073.77041.74851.7553
H72.15071.09082.97682.75221.74853.28071.75142.95613.9617
H82.14601.08323.50132.46511.75533.77041.75143.96174.2718
H92.15072.97681.09082.75223.28071.74852.95613.96171.7514
H102.14603.50131.08322.46513.77041.75533.96174.27181.7514

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 111.202 C1 C2 H7 111.499
C1 C2 H8 111.584 C1 C3 H6 111.202
C1 C3 H9 111.499 C1 C3 H10 111.584
C2 C1 C3 120.242 C2 C1 H4 117.919
C3 C1 H4 117.919 H5 C2 H7 106.922
H5 C2 H8 108.072 H6 C3 H9 106.922
H6 C3 H10 108.072 H7 C2 H8 107.339
H9 C3 H10 107.339
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.234      
2 C -0.316      
3 C -0.316      
4 H 0.113      
5 H 0.130      
6 H 0.130      
7 H 0.134      
8 H 0.113      
9 H 0.134      
10 H 0.113      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.243 -0.118 0.000 0.270
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.558 0.509 0.000
y 0.509 -20.902 0.000
z 0.000 0.000 -20.966
Traceless
 xyz
x -0.625 0.509 0.000
y 0.509 0.360 0.000
z 0.000 0.000 0.264
Polar
3z2-r20.528
x2-y2-0.657
xy0.509
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.858 0.007 0.000
y 0.007 5.311 0.000
z 0.000 0.000 6.046


<r2> (average value of r2) Å2
<r2> 61.455
(<r2>)1/2 7.839