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

using model chemistry: M06-2X/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 M06-2X/3-21G
 hartrees
Energy at 0K-117.755258
Energy at 298.15K-117.761576
HF Energy-117.755258
Nuclear repulsion energy75.188763
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 M06-2X/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' 3234 3100 15.30      
2 A' 3118 2989 10.00      
3 A' 3049 2923 37.15      
4 A' 3008 2884 18.48      
5 A' 1568 1503 7.68      
6 A' 1551 1487 18.38      
7 A' 1470 1409 8.57      
8 A' 1219 1169 6.98      
9 A' 1076 1031 2.83      
10 A' 885 848 1.64      
11 A' 419 401 20.37      
12 A' 361 346 10.71      
13 A' 161 154 0.12      
14 A" 3118 2989 16.95      
15 A" 3048 2922 0.09      
16 A" 3005 2881 15.68      
17 A" 1555 1491 2.61      
18 A" 1537 1473 1.17      
19 A" 1453 1393 8.40      
20 A" 1404 1346 6.43      
21 A" 1148 1100 0.64      
22 A" 989 948 0.02      
23 A" 979 939 2.61      
24 A" 145 139 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19748.3 cm-1
Scaled (by 0.9587) Zero Point Vibrational Energy (zpe) 18932.7 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 M06-2X/3-21G
ABC
1.21396 0.27887 0.24815

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 0.556 0.000
C2 -0.013 -0.204 1.295
C3 -0.013 -0.204 -1.295
H4 0.281 1.600 0.000
H5 -0.771 -0.997 1.277
H6 -0.771 -0.997 -1.277
H7 0.959 -0.695 1.474
H8 -0.215 0.449 2.149
H9 0.959 -0.695 -1.474
H10 -0.215 0.449 -2.149

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.50191.50191.08462.14942.14942.16372.16142.16372.1614
C21.50192.59072.24041.09792.79691.10271.09402.97573.5118
C31.50192.59072.24042.79691.09792.97573.51181.10271.0940
H41.08462.24042.24043.07993.07992.81052.48812.81052.4881
H52.14941.09792.79693.07992.55441.76731.77813.26423.7605
H62.14942.79691.09793.07992.55443.26423.76051.76731.7781
H72.16371.10272.97572.81051.76733.26421.77252.94853.9769
H82.16141.09403.51182.48811.77813.76051.77253.97694.2985
H92.16372.97571.10272.81053.26421.76732.94853.97691.7725
H102.16143.51181.09402.48813.76051.77813.97694.29851.7725

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 110.573 C1 C2 H7 111.420
C1 C2 H8 111.778 C1 C3 H6 110.573
C1 C3 H9 111.420 C1 C3 H10 111.778
C2 C1 C3 119.185 C2 C1 H4 119.158
C3 C1 H4 119.158 H5 C2 H7 106.853
H5 C2 H8 108.436 H6 C3 H9 106.853
H6 C3 H10 108.436 H7 C2 H8 107.585
H9 C3 H10 107.585
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.173      
2 C -0.617      
3 C -0.617      
4 H 0.189      
5 H 0.201      
6 H 0.201      
7 H 0.202      
8 H 0.205      
9 H 0.202      
10 H 0.205      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.225 -0.145 0.000 0.268
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.582 0.410 0.000
y 0.410 -20.442 0.000
z 0.000 0.000 -20.347
Traceless
 xyz
x -1.187 0.410 0.000
y 0.410 0.522 0.000
z 0.000 0.000 0.665
Polar
3z2-r21.329
x2-y2-1.139
xy0.410
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.593 0.100 0.000
y 0.100 4.421 0.000
z 0.000 0.000 5.059


<r2> (average value of r2) Å2
<r2> 61.444
(<r2>)1/2 7.839