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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-117.631795
Energy at 298.15K-117.638313
HF Energy-117.631795
Nuclear repulsion energy75.465236
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' 3331 2966 53.45      
2 A' 3262 2904 36.64      
3 A' 3226 2872 73.11      
4 A' 3165 2818 51.83      
5 A' 1640 1460 3.22      
6 A' 1636 1457 9.45      
7 A' 1571 1399 2.12      
8 A' 1291 1150 2.10      
9 A' 1158 1031 0.40      
10 A' 933 831 1.40      
11 A' 542 483 17.72      
12 A' 381 339 1.66      
13 A' 183 163 0.16      
14 A" 3262 2904 36.17      
15 A" 3222 2869 9.64      
16 A" 3160 2814 30.62      
17 A" 1632 1453 0.43      
18 A" 1623 1446 0.97      
19 A" 1568 1396 3.85      
20 A" 1494 1330 6.45      
21 A" 1213 1080 0.05      
22 A" 1031 918 0.15      
23 A" 1018 907 0.54      
24 A" 144 128 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20842.7 cm-1
Scaled (by 0.8904) Zero Point Vibrational Energy (zpe) 18558.3 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 ROHF/6-31G*
ABC
1.24219 0.27776 0.24859

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 -0.019 0.552 0.000
C2 -0.019 -0.201 1.298
C3 -0.019 -0.201 -1.298
H4 0.433 1.530 0.000
H5 -0.783 -0.974 1.303
H6 -0.783 -0.974 -1.303
H7 0.937 -0.697 1.476
H8 -0.203 0.458 2.140
H9 0.937 -0.697 -1.476
H10 -0.203 0.458 -2.140

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.50061.50061.07752.14712.14712.15652.15002.15652.1500
C21.50062.59572.21061.08682.81871.09111.08522.97523.5053
C31.50062.59572.21062.81871.08682.97523.50531.09111.0852
H41.07752.21062.21063.07353.07352.71862.47692.71862.4769
H52.14711.08682.81873.07352.60581.75111.75673.27983.7734
H62.14712.81871.08683.07352.60583.27983.77341.75111.7567
H72.15651.09112.97522.71861.75113.27981.75332.95153.9632
H82.15001.08523.50532.47691.75673.77341.75333.96324.2800
H92.15652.97521.09112.71863.27981.75112.95153.96321.7533
H102.15003.50531.08522.47693.77341.75673.96324.28001.7533

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 111.148 C1 C2 H7 111.649
C1 C2 H8 111.492 C1 C3 H6 111.148
C1 C3 H9 111.649 C1 C3 H10 111.492
C2 C1 C3 119.735 C2 C1 H4 117.113
C3 C1 H4 117.113 H5 C2 H7 107.028
H5 C2 H8 107.956 H6 C3 H9 107.028
H6 C3 H10 107.956 H7 C2 H8 107.345
H9 C3 H10 107.345
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 -0.144      
2 C -0.499      
3 C -0.499      
4 H 0.161      
5 H 0.163      
6 H 0.163      
7 H 0.160      
8 H 0.167      
9 H 0.160      
10 H 0.167      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.259 -0.102 0.000 0.278
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.363 0.521 -0.000
y 0.521 -20.836 0.001
z -0.000 0.001 -20.944
Traceless
 xyz
x -0.473 0.521 -0.000
y 0.521 0.317 0.001
z -0.000 0.001 0.156
Polar
3z2-r20.312
x2-y2-0.527
xy0.521
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> 61.471
(<r2>)1/2 7.840