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

using model chemistry: BLYP/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 BLYP/6-311G*
 hartrees
Energy at 0K-118.420576
Energy at 298.15K-118.426622
HF Energy-118.420576
Nuclear repulsion energy74.903690
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 BLYP/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' 3081 3074 41.35      
2 A' 3002 2995 23.42      
3 A' 2930 2923 66.83      
4 A' 2847 2840 84.18      
5 A' 1475 1471 4.59      
6 A' 1460 1457 15.83      
7 A' 1392 1388 3.80      
8 A' 1154 1151 2.58      
9 A' 1010 1008 0.19      
10 A' 859 857 1.99      
11 A' 384 383 9.73      
12 A' 343 343 17.00      
13 A' 109 109 0.75      
14 A" 3003 2996 40.75      
15 A" 2927 2920 11.98      
16 A" 2842 2834 29.42      
17 A" 1460 1457 1.68      
18 A" 1449 1445 0.63      
19 A" 1380 1377 5.49      
20 A" 1343 1340 4.53      
21 A" 1117 1115 0.44      
22 A" 930 928 1.35      
23 A" 924 922 0.11      
24 A" 111 111 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 18766.4 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 18719.5 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 BLYP/6-311G*
ABC
1.24028 0.27361 0.24477

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.010 0.536 0.000
C2 -0.010 -0.197 1.306
C3 -0.010 -0.197 -1.306
H4 0.201 1.607 0.000
H5 -0.762 -1.007 1.323
H6 -0.762 -1.007 -1.323
H7 0.964 -0.691 1.514
H8 -0.213 0.470 2.156
H9 0.964 -0.691 -1.514
H10 -0.213 0.470 -2.156

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49741.49741.09242.16682.16682.17842.16692.17842.1669
C21.49742.61162.23751.10492.85191.11181.09993.02403.5317
C31.49742.61162.23752.85191.10493.02403.53171.11181.0999
H41.09242.23752.23753.08403.08402.85592.47282.85592.4728
H52.16681.10492.85193.08402.64681.76541.78203.33643.8197
H62.16682.85191.10493.08402.64683.33643.81971.76541.7820
H72.17841.11183.02402.85591.76543.33641.77363.02824.0256
H82.16691.09993.53172.47281.78203.81971.77364.02564.3127
H92.17843.02401.11182.85593.33641.76543.02824.02561.7736
H102.16693.53171.09992.47283.81971.78204.02564.31271.7736

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 111.862 C1 C2 H7 112.369
C1 C2 H8 112.176 C1 C3 H6 111.862
C1 C3 H9 112.369 C1 C3 H10 112.176
C2 C1 C3 121.398 C2 C1 H4 118.698
C3 C1 H4 118.698 H5 C2 H7 105.572
H5 C2 H8 107.842 H6 C3 H9 105.572
H6 C3 H10 107.842 H7 C2 H8 106.620
H9 C3 H10 106.620
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.171      
2 C -0.600      
3 C -0.600      
4 H 0.182      
5 H 0.197      
6 H 0.197      
7 H 0.196      
8 H 0.202      
9 H 0.196      
10 H 0.202      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.152 -0.094 0.000 0.179
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.047 0.308 0.000
y 0.308 -20.975 0.000
z 0.000 0.000 -21.090
Traceless
 xyz
x -1.014 0.308 0.000
y 0.308 0.593 0.000
z 0.000 0.000 0.421
Polar
3z2-r20.842
x2-y2-1.072
xy0.308
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.494 0.016 0.000
y 0.016 5.376 0.000
z 0.000 0.000 6.379


<r2> (average value of r2) Å2
<r2> 62.544
(<r2>)1/2 7.908