return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: wB97X-D/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at wB97X-D/Def2TZVPP
 hartrees
Energy at 0K-118.483537
Energy at 298.15K-118.489804
HF Energy-118.483537
Nuclear repulsion energy75.683091
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 wB97X-D/Def2TZVPP
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' 3207 3063 22.96      
2 A' 3129 2989 15.42      
3 A' 3053 2917 47.25      
4 A' 2985 2851 42.54      
5 A' 1502 1435 6.20      
6 A' 1484 1418 16.00      
7 A' 1419 1355 4.39      
8 A' 1186 1133 2.69      
9 A' 1035 989 0.02      
10 A' 897 857 1.93      
11 A' 397 379 15.75      
12 A' 356 340 12.38      
13 A' 146 140 0.60      
14 A" 3130 2989 24.69      
15 A" 3054 2917 5.12      
16 A" 2981 2847 24.44      
17 A" 1489 1422 1.59      
18 A" 1474 1408 0.64      
19 A" 1421 1357 9.06      
20 A" 1365 1304 1.61      
21 A" 1155 1103 0.15      
22 A" 959 916 0.87      
23 A" 943 900 0.00      
24 A" 163 155 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19463.4 cm-1
Scaled (by 0.9552) Zero Point Vibrational Energy (zpe) 18591.4 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 wB97X-D/Def2TZVPP
ABC
1.24982 0.28109 0.25078

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.009 0.538 0.000
C2 -0.009 -0.198 1.289
C3 -0.009 -0.198 -1.289
H4 0.183 1.602 0.000
H5 -0.773 -0.982 1.300
H6 -0.773 -0.982 -1.300
H7 0.950 -0.704 1.468
H8 -0.188 0.462 2.137
H9 0.950 -0.704 -1.468
H10 -0.188 0.462 -2.137

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48441.48441.08192.14092.14092.14902.14632.14902.1463
C21.48442.57862.22271.09462.81111.09951.08972.96303.4944
C31.48442.57862.22272.81111.09462.96303.49441.09951.0897
H41.08192.22272.22273.04693.04692.83992.45072.83992.4507
H52.14091.09462.81113.04692.60001.75341.76913.27233.7742
H62.14092.81111.09463.04692.60003.27233.77421.75341.7691
H72.14901.09952.96302.83991.75343.27231.76212.93603.9568
H82.14631.08973.49442.45071.76913.77421.76213.95684.2749
H92.14902.96301.09952.83993.27231.75342.93603.95681.7621
H102.14633.49441.08972.45073.77421.76913.95684.27491.7621

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 111.321 C1 C2 H7 111.677
C1 C2 H8 112.069 C1 C3 H6 111.321
C1 C3 H9 111.677 C1 C3 H10 112.069
C2 C1 C3 120.579 C2 C1 H4 119.193
C3 C1 H4 119.193 H5 C2 H7 106.098
H5 C2 H8 108.180 H6 C3 H9 106.098
H6 C3 H10 108.180 H7 C2 H8 107.203
H9 C3 H10 107.203
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.179      
2 C -0.208      
3 C -0.208      
4 H 0.118      
5 H 0.073      
6 H 0.073      
7 H 0.081      
8 H 0.084      
9 H 0.081      
10 H 0.084      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.152 -0.131 0.000 0.200
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.535 0.287 0.000
y 0.287 -20.597 0.000
z 0.000 0.000 -20.611
Traceless
 xyz
x -0.931 0.287 0.000
y 0.287 0.476 0.000
z 0.000 0.000 0.455
Polar
3z2-r20.910
x2-y2-0.938
xy0.287
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.970 -0.018 0.000
y -0.018 5.597 0.000
z 0.000 0.000 6.440


<r2> (average value of r2) Å2
<r2> 61.065
(<r2>)1/2 7.814