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

using model chemistry: ROHF/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-117.675266
Energy at 298.15K-117.681809
HF Energy-117.675266
Nuclear repulsion energy75.620754
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/cc-pVTZ
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' 3283 2958 49.40      
2 A' 3212 2894 33.04      
3 A' 3176 2861 65.40      
4 A' 3115 2807 58.77      
5 A' 1608 1449 4.61      
6 A' 1605 1446 11.68      
7 A' 1540 1387 2.81      
8 A' 1277 1151 1.97      
9 A' 1143 1030 0.60      
10 A' 923 832 1.60      
11 A' 540 486 18.53      
12 A' 381 343 1.46      
13 A' 189 170 0.12      
14 A" 3213 2895 36.70      
15 A" 3172 2858 10.34      
16 A" 3111 2803 28.71      
17 A" 1600 1442 0.49      
18 A" 1593 1435 1.04      
19 A" 1538 1386 5.06      
20 A" 1474 1328 4.86      
21 A" 1200 1081 0.00      
22 A" 1017 917 0.26      
23 A" 1007 907 0.41      
24 A" 145 131 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20531.5 cm-1
Scaled (by 0.901) Zero Point Vibrational Energy (zpe) 18498.9 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/cc-pVTZ
ABC
1.24644 0.27910 0.24974

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/cc-pVTZ

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 0.425 1.531 0.000
H5 -0.785 -0.969 1.301
H6 -0.785 -0.969 -1.301
H7 0.935 -0.700 1.467
H8 -0.196 0.458 2.137
H9 0.935 -0.700 -1.467
H10 -0.196 0.458 -2.137

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49701.49701.07582.14252.14252.15032.14592.15032.1459
C21.49702.58962.20711.08522.81391.09001.08332.96383.4985
C31.49702.58962.20712.81391.08522.96383.49851.09001.0833
H41.07582.20712.20713.06703.06702.71762.47012.71762.4701
H52.14251.08522.81393.06702.60271.74891.75523.27003.7686
H62.14252.81391.08523.06702.60273.27003.76861.74891.7552
H72.15031.09002.96382.71761.74893.27001.75132.93323.9498
H82.14591.08333.49852.47011.75523.76861.75133.94984.2731
H92.15032.96381.09002.71763.27001.74892.93323.94981.7513
H102.14593.49851.08332.47013.76861.75523.94984.27311.7513

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 111.135 C1 C2 H7 111.474
C1 C2 H8 111.530 C1 C3 H6 111.135
C1 C3 H9 111.474 C1 C3 H10 111.530
C2 C1 C3 119.746 C2 C1 H4 117.208
C3 C1 H4 117.208 H5 C2 H7 107.026
H5 C2 H8 108.076 H6 C3 H9 107.026
H6 C3 H10 108.076 H7 C2 H8 107.387
H9 C3 H10 107.387
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.166      
2 C -0.266      
3 C -0.266      
4 H 0.134      
5 H 0.092      
6 H 0.092      
7 H 0.087      
8 H 0.103      
9 H 0.087      
10 H 0.103      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.272 -0.127 0.000 0.300
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.450 0.565 -0.000
y 0.565 -20.981 0.001
z -0.000 0.001 -21.034
Traceless
 xyz
x -0.443 0.565 -0.000
y 0.565 0.261 0.001
z -0.000 0.001 0.182
Polar
3z2-r20.363
x2-y2-0.469
xy0.565
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> 61.318
(<r2>)1/2 7.831