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

using model chemistry: B2PLYP/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at B2PLYP/6-311+G(3df,2p)
 hartrees
Energy at 0K-118.390286
Energy at 298.15K-118.396427
HF Energy-118.227974
Nuclear repulsion energy75.641424
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 B2PLYP/6-311+G(3df,2p)
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' 3197 3197 22.47      
2 A' 3115 3115 16.09      
3 A' 3044 3044 43.11      
4 A' 2974 2974 45.84      
5 A' 1506 1506 5.54      
6 A' 1495 1495 14.15      
7 A' 1424 1424 4.02      
8 A' 1190 1190 2.16      
9 A' 1035 1035 0.03      
10 A' 894 894 1.75      
11 A' 391 391 10.22      
12 A' 344 344 17.31      
13 A' 123 123 1.17      
14 A" 3117 3117 26.12      
15 A" 3044 3044 6.27      
16 A" 2971 2971 23.18      
17 A" 1492 1492 1.04      
18 A" 1484 1484 0.56      
19 A" 1422 1422 7.78      
20 A" 1378 1378 2.80      
21 A" 1155 1155 0.18      
22 A" 952 952 0.80      
23 A" 944 944 0.01      
24 A" 118 118 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19403.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19403.1 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 B2PLYP/6-311+G(3df,2p)
ABC
1.24842 0.28051 0.25027

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.010 0.540 0.000
C2 -0.010 -0.199 1.291
C3 -0.010 -0.199 -1.291
H4 0.212 1.597 0.000
H5 -0.780 -0.975 1.305
H6 -0.780 -0.975 -1.305
H7 0.944 -0.714 1.465
H8 -0.178 0.461 2.140
H9 0.944 -0.714 -1.465
H10 -0.178 0.461 -2.140

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48701.48701.08062.14242.14242.15132.14802.15132.1480
C21.48702.58152.22271.09322.81691.09861.08852.96143.4976
C31.48702.58152.22272.81691.09322.96143.49761.09861.0885
H41.08062.22272.22273.05003.05002.83252.45402.83252.4540
H52.14241.09322.81693.05002.61071.75131.76653.27353.7808
H62.14242.81691.09323.05002.61073.27353.78081.75131.7665
H72.15131.09862.96142.83251.75133.27351.75972.92973.9542
H82.14801.08853.49762.45401.76653.78081.75973.95424.2800
H92.15132.96141.09862.83253.27351.75132.92973.95421.7597
H102.14803.49761.08852.45403.78081.76653.95424.28001.7597

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 111.352 C1 C2 H7 111.740
C1 C2 H8 112.102 C1 C3 H6 111.352
C1 C3 H9 111.740 C1 C3 H10 112.102
C2 C1 C3 120.461 C2 C1 H4 119.072
C3 C1 H4 119.072 H5 C2 H7 106.071
H5 C2 H8 108.136 H6 C3 H9 106.071
H6 C3 H10 108.136 H7 C2 H8 107.138
H9 C3 H10 107.138
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.224      
2 C -0.396      
3 C -0.396      
4 H 0.138      
5 H 0.149      
6 H 0.149      
7 H 0.153      
8 H 0.136      
9 H 0.153      
10 H 0.136      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.175 -0.145 0.000 0.227
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.907 0.350 0.000
y 0.350 -20.986 0.000
z 0.000 0.000 -20.975
Traceless
 xyz
x -0.927 0.350 0.000
y 0.350 0.455 0.000
z 0.000 0.000 0.472
Polar
3z2-r20.944
x2-y2-0.921
xy0.350
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.193 -0.052 0.000
y -0.052 5.721 0.000
z 0.000 0.000 6.625


<r2> (average value of r2) Å2
<r2> 61.375
(<r2>)1/2 7.834