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

using model chemistry: HSEh1PBE/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at HSEh1PBE/3-21G*
 hartrees
Energy at 0K-117.689791
Energy at 298.15K-117.695939
HF Energy-117.689791
Nuclear repulsion energy75.321415
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 HSEh1PBE/3-21G*
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' 3213 3084 21.40      
2 A' 3133 3007 12.19      
3 A' 3066 2943 39.90      
4 A' 2993 2873 33.35      
5 A' 1559 1496 6.69      
6 A' 1548 1486 20.72      
7 A' 1465 1406 8.84      
8 A' 1217 1168 8.22      
9 A' 1068 1025 3.65      
10 A' 890 854 2.04      
11 A' 394 378 8.36      
12 A' 342 328 26.76      
13 A' 117 112 0.93      
14 A" 3134 3008 21.39      
15 A" 3065 2942 4.55      
16 A" 2988 2868 17.42      
17 A" 1544 1482 2.97      
18 A" 1533 1472 1.00      
19 A" 1448 1390 10.09      
20 A" 1399 1343 6.64      
21 A" 1155 1108 0.82      
22 A" 986 947 1.30      
23 A" 979 939 1.21      
24 A" 120 115 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 19676.5 cm-1
Scaled (by 0.9599) Zero Point Vibrational Energy (zpe) 18887.4 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 HSEh1PBE/3-21G*
ABC
1.22508 0.27968 0.24910

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.010 0.548 0.000
C2 -0.010 -0.202 1.293
C3 -0.010 -0.202 -1.293
H4 0.222 1.608 0.000
H5 -0.777 -0.990 1.289
H6 -0.777 -0.990 -1.289
H7 0.957 -0.705 1.471
H8 -0.199 0.458 2.147
H9 0.957 -0.705 -1.471
H10 -0.199 0.458 -2.147

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49421.49421.08572.14782.14782.16042.15682.16042.1568
C21.49422.58522.23621.09962.80581.10481.09532.97063.5069
C31.49422.58522.23622.80581.09962.97063.50691.10481.0953
H41.08572.23622.23623.06753.06752.83762.47172.83762.4717
H52.14781.09962.80583.06752.57751.76691.77903.27153.7723
H62.14782.80581.09963.06752.57753.27153.77231.76691.7790
H72.16041.10482.97062.83761.76693.27151.77332.94123.9714
H82.15681.09533.50692.47171.77903.77231.77333.97144.2932
H92.16042.97061.10482.83763.27151.76692.94123.97141.7733
H102.15683.50691.09532.47173.77231.77903.97144.29321.7733

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 110.883 C1 C2 H7 111.576
C1 C2 H8 111.878 C1 C3 H6 110.883
C1 C3 H9 111.576 C1 C3 H10 111.878
C2 C1 C3 119.789 C2 C1 H4 119.336
C3 C1 H4 119.336 H5 C2 H7 106.553
H5 C2 H8 108.300 H6 C3 H9 106.553
H6 C3 H10 108.300 H7 C2 H8 107.415
H9 C3 H10 107.415
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.178      
2 C -0.671      
3 C -0.671      
4 H 0.204      
5 H 0.219      
6 H 0.219      
7 H 0.219      
8 H 0.220      
9 H 0.219      
10 H 0.220      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.196 -0.148 0.000 0.246
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.495 0.350 0.000
y 0.350 -20.202 0.000
z 0.000 0.000 -20.125
Traceless
 xyz
x -1.331 0.350 0.000
y 0.350 0.609 0.000
z 0.000 0.000 0.723
Polar
3z2-r21.446
x2-y2-1.293
xy0.350
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.599 0.064 0.000
y 0.064 4.483 0.000
z 0.000 0.000 5.158


<r2> (average value of r2) Å2
<r2> 61.200
(<r2>)1/2 7.823