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

using model chemistry: PBEPBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at PBEPBE/6-311G*
 hartrees
Energy at 0K-118.319192
Energy at 298.15K-118.325251
HF Energy-118.319192
Nuclear repulsion energy75.157727
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 PBEPBE/6-311G*
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' 3101 3069 35.93      
2 A' 3029 2998 19.52      
3 A' 2953 2922 59.45      
4 A' 2871 2841 66.44      
5 A' 1463 1448 5.47      
6 A' 1448 1433 19.27      
7 A' 1377 1362 5.42      
8 A' 1149 1137 2.97      
9 A' 1001 990 0.46      
10 A' 879 870 2.52      
11 A' 387 383 12.75      
12 A' 346 342 16.38      
13 A' 114 113 0.63      
14 A" 3030 2999 31.48      
15 A" 2953 2922 9.48      
16 A" 2866 2836 32.51      
17 A" 1447 1432 1.59      
18 A" 1436 1421 1.61      
19 A" 1376 1361 10.37      
20 A" 1333 1319 1.11      
21 A" 1139 1127 0.33      
22 A" 919 909 1.65      
23 A" 914 904 0.06      
24 A" 112 111 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 18820.2 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 18624.4 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 PBEPBE/6-311G*
ABC
1.24142 0.27687 0.24745

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.010 0.535 0.000
C2 -0.010 -0.196 1.297
C3 -0.010 -0.196 -1.297
H4 0.211 1.606 0.000
H5 -0.758 -1.011 1.309
H6 -0.758 -1.011 -1.309
H7 0.966 -0.686 1.507
H8 -0.220 0.466 2.151
H9 0.966 -0.686 -1.507
H10 -0.220 0.466 -2.151

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48901.48901.09372.15922.15922.17142.16182.17142.1618
C21.48902.59382.23171.10572.83041.11241.10083.00903.5168
C31.48902.59382.23172.83041.10573.00903.51681.11241.1008
H41.09372.23172.23173.08243.08242.84502.47182.84502.4718
H52.15921.10572.83043.08242.61711.76611.78353.31753.7996
H62.15922.83041.10573.08242.61713.31753.79961.76611.7835
H72.17141.11243.00902.84501.76613.31751.77443.01354.0137
H82.16181.10083.51682.47181.78353.79961.77444.01374.3011
H92.17143.00901.11242.84503.31751.76613.01354.01371.7744
H102.16183.51681.10082.47183.79961.78354.01374.30111.7744

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 111.786 C1 C2 H7 112.357
C1 C2 H8 112.310 C1 C3 H6 111.786
C1 C3 H9 112.357 C1 C3 H10 112.310
C2 C1 C3 121.140 C2 C1 H4 118.764
C3 C1 H4 118.764 H5 C2 H7 105.535
H5 C2 H8 107.857 H6 C3 H9 105.535
H6 C3 H10 107.857 H7 C2 H8 106.589
H9 C3 H10 106.589
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.189      
2 C -0.659      
3 C -0.659      
4 H 0.198      
5 H 0.216      
6 H 0.216      
7 H 0.216      
8 H 0.222      
9 H 0.216      
10 H 0.222      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.169 -0.116 0.000 0.205
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.891 0.333 0.000
y 0.333 -20.740 0.000
z 0.000 0.000 -20.791
Traceless
 xyz
x -1.125 0.333 0.000
y 0.333 0.601 0.000
z 0.000 0.000 0.524
Polar
3z2-r21.048
x2-y2-1.150
xy0.333
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.483 0.016 0.000
y 0.016 5.353 0.000
z 0.000 0.000 6.359


<r2> (average value of r2) Å2
<r2> 61.944
(<r2>)1/2 7.870