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

using model chemistry: mPW1PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-118.459584
Energy at 298.15K-118.465749
HF Energy-118.459584
Nuclear repulsion energy75.508290
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 mPW1PW91/6-31G(2df,p)
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' 3203 3058 26.35      
2 A' 3131 2989 17.60      
3 A' 3071 2932 42.12      
4 A' 2989 2854 36.16      
5 A' 1493 1425 4.13      
6 A' 1483 1415 11.81      
7 A' 1411 1347 3.37      
8 A' 1180 1127 3.45      
9 A' 1033 986 0.20      
10 A' 898 857 1.80      
11 A' 415 397 16.51      
12 A' 362 345 5.66      
13 A' 126 121 0.04      
14 A" 3132 2990 19.77      
15 A" 3071 2932 6.66      
16 A" 2984 2849 28.13      
17 A" 1482 1415 0.17      
18 A" 1471 1404 1.21      
19 A" 1414 1350 8.33      
20 A" 1366 1305 2.36      
21 A" 1168 1115 0.08      
22 A" 940 897 1.51      
23 A" 935 893 0.14      
24 A" 112 107 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 19434.5 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 18554.2 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 mPW1PW91/6-31G(2df,p)
ABC
1.25737 0.27836 0.24910

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.012 0.533 0.000
C2 -0.012 -0.197 1.295
C3 -0.012 -0.197 -1.295
H4 0.242 1.588 0.000
H5 -0.720 -1.033 1.284
H6 -0.720 -1.033 -1.284
H7 0.974 -0.634 1.526
H8 -0.270 0.456 2.132
H9 0.974 -0.634 -1.526
H10 -0.270 0.456 -2.132

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48621.48621.08502.14542.14542.15872.14912.15872.1491
C21.48622.58962.21931.09612.80231.10231.09303.01933.4982
C31.48622.58962.21932.80231.09613.01933.49821.10231.0930
H41.08502.21932.21933.07293.07292.79282.46762.79282.4676
H52.14541.09612.80233.07292.56851.75681.77163.30503.7538
H62.14542.80231.09613.07292.56853.30503.75381.75681.7716
H72.15871.10233.01932.79281.75683.30501.76193.05114.0144
H82.14911.09303.49822.46761.77163.75381.76194.01444.2643
H92.15873.01931.10232.79283.30501.75683.05114.01441.7619
H102.14913.49821.09302.46763.75381.77164.01444.26431.7619

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 111.469 C1 C2 H7 112.164
C1 C2 H8 111.975 C1 C3 H6 111.469
C1 C3 H9 112.164 C1 C3 H10 111.975
C2 C1 C3 121.202 C2 C1 H4 118.507
C3 C1 H4 118.507 H5 C2 H7 106.094
H5 C2 H8 108.052 H6 C3 H9 106.094
H6 C3 H10 108.052 H7 C2 H8 106.761
H9 C3 H10 106.761
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.079      
2 C -0.458      
3 C -0.458      
4 H 0.123      
5 H 0.144      
6 H 0.144      
7 H 0.145      
8 H 0.147      
9 H 0.145      
10 H 0.147      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.168 -0.113 0.000 0.203
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.988 0.301 0.000
y 0.301 -20.081 0.000
z 0.000 0.000 -20.146
Traceless
 xyz
x -0.875 0.301 0.000
y 0.301 0.486 0.000
z 0.000 0.000 0.389
Polar
3z2-r20.778
x2-y2-0.907
xy0.301
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.128 0.053 0.000
y 0.053 4.899 0.000
z 0.000 0.000 5.770


<r2> (average value of r2) Å2
<r2> 61.091
(<r2>)1/2 7.816