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

using model chemistry: mPW1PW91/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-118.460407
Energy at 298.15K-118.466486
HF Energy-118.460407
Nuclear repulsion energy75.394861
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/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3209 3075 25.57      
2 A' 3134 3003 16.08      
3 A' 3055 2927 50.18      
4 A' 2984 2859 47.42      
5 A' 1467 1406 5.10      
6 A' 1452 1392 14.59      
7 A' 1388 1330 4.97      
8 A' 1171 1123 2.29      
9 A' 1005 963 0.02      
10 A' 905 867 2.33      
11 A' 385 369 6.95      
12 A' 338 324 19.81      
13 A' 110 106 1.68      
14 A" 3135 3005 25.02      
15 A" 3055 2928 4.96      
16 A" 2979 2855 30.81      
17 A" 1453 1393 0.09      
18 A" 1442 1382 2.22      
19 A" 1410 1352 9.63      
20 A" 1348 1291 0.37      
21 A" 1170 1121 0.06      
22 A" 930 891 0.32      
23 A" 925 887 0.47      
24 A" 110 106 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19279.8 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 18475.8 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/aug-cc-pVDZ
ABC
1.24307 0.27907 0.24918

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.009 0.536 0.000
C2 -0.009 -0.198 1.293
C3 -0.009 -0.198 -1.293
H4 0.192 1.607 0.000
H5 -0.789 -0.976 1.315
H6 -0.789 -0.976 -1.315
H7 0.949 -0.722 1.470
H8 -0.173 0.473 2.145
H9 0.949 -0.722 -1.470
H10 -0.173 0.473 -2.145

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48671.48671.08982.14982.14982.15912.15252.15912.1525
C21.48672.58632.22921.10172.83101.10671.09662.97123.5070
C31.48672.58632.22922.83101.10172.97123.50701.10671.0966
H41.08982.22922.22923.05973.05972.85612.45412.85612.4541
H52.14981.10172.83103.05972.62971.76341.77953.29253.8013
H62.14982.83101.10173.05972.62973.29253.80131.76341.7795
H72.15911.10672.97122.85611.76343.29251.77282.93993.9695
H82.15251.09663.50702.45411.77953.80131.77283.96954.2906
H92.15912.97121.10672.85613.29251.76342.93993.96951.7728
H102.15253.50701.09662.45413.80131.77953.96954.29061.7728

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 111.445 C1 C2 H7 111.883
C1 C2 H8 111.981 C1 C3 H6 111.445
C1 C3 H9 111.883 C1 C3 H10 111.981
C2 C1 C3 120.866 C2 C1 H4 119.008
C3 C1 H4 119.008 H5 C2 H7 105.975
H5 C2 H8 108.096 H6 C3 H9 105.975
H6 C3 H10 108.096 H7 C2 H8 107.152
H9 C3 H10 107.152
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.443      
2 C 0.294      
3 C 0.294      
4 H -0.500      
5 H -0.078      
6 H -0.078      
7 H -0.045      
8 H -0.143      
9 H -0.045      
10 H -0.143      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.153 -0.130 0.000 0.201
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.683 0.330 0.000
y 0.330 -20.765 0.000
z 0.000 0.000 -20.737
Traceless
 xyz
x -0.932 0.330 0.000
y 0.330 0.445 0.000
z 0.000 0.000 0.486
Polar
3z2-r20.973
x2-y2-0.918
xy0.330
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.367 -0.061 0.000
y -0.061 5.967 0.000
z 0.000 0.000 6.887


<r2> (average value of r2) Å2
<r2> 61.518
(<r2>)1/2 7.843