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

using model chemistry: B2PLYP/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-118.395516
Energy at 298.15K-118.401682
HF Energy-118.231104
Nuclear repulsion energy75.647291
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/cc-pVTZ
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' 3200 3070 25.10      
2 A' 3117 2991 17.91      
3 A' 3049 2925 46.83      
4 A' 2975 2854 48.08      
5 A' 1504 1443 4.27      
6 A' 1494 1433 13.21      
7 A' 1423 1365 4.05      
8 A' 1191 1142 2.23      
9 A' 1040 997 0.04      
10 A' 894 858 1.80      
11 A' 398 382 12.47      
12 A' 351 337 12.18      
13 A' 128 123 0.56      
14 A" 3118 2992 26.20      
15 A" 3049 2925 6.66      
16 A" 2972 2851 23.39      
17 A" 1492 1431 0.72      
18 A" 1483 1423 0.81      
19 A" 1422 1365 7.83      
20 A" 1380 1324 2.64      
21 A" 1157 1110 0.15      
22 A" 953 914 0.99      
23 A" 946 907 0.00      
24 A" 115 111 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19425.0 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 18636.3 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/cc-pVTZ
ABC
1.25135 0.28024 0.25020

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.011 0.539 0.000
C2 -0.011 -0.198 1.291
C3 -0.011 -0.198 -1.291
H4 0.226 1.593 0.000
H5 -0.765 -0.989 1.298
H6 -0.765 -0.989 -1.298
H7 0.952 -0.694 1.478
H8 -0.201 0.460 2.137
H9 0.952 -0.694 -1.478
H10 -0.201 0.460 -2.137

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48671.48671.08022.14162.14162.15202.14702.15202.1470
C21.48672.58272.22041.09282.81051.09861.08852.97383.4963
C31.48672.58272.22042.81051.09282.97383.49631.09861.0885
H41.08022.22042.22043.05453.05452.81792.45602.81792.4560
H52.14161.09282.81053.05452.59611.75141.76673.27773.7706
H62.14162.81051.09283.05452.59613.27773.77061.75141.7667
H72.15201.09862.97382.81791.75143.27771.75912.95693.9665
H82.14701.08853.49632.45601.76673.77061.75913.96654.2743
H92.15202.97381.09862.81793.27771.75142.95693.96651.7591
H102.14703.49631.08852.45603.77061.76673.96654.27431.7591

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 111.331 C1 C2 H7 111.811
C1 C2 H8 112.043 C1 C3 H6 111.331
C1 C3 H9 111.811 C1 C3 H10 112.043
C2 C1 C3 120.592 C2 C1 H4 118.914
C3 C1 H4 118.914 H5 C2 H7 106.102
H5 C2 H8 108.173 H6 C3 H9 106.102
H6 C3 H10 108.173 H7 C2 H8 107.082
H9 C3 H10 107.082
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.155      
2 C -0.275      
3 C -0.275      
4 H 0.129      
5 H 0.094      
6 H 0.094      
7 H 0.091      
8 H 0.103      
9 H 0.091      
10 H 0.103      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.739 0.019 0.000
y 0.019 5.463 0.000
z 0.000 0.000 6.394


<r2> (average value of r2) Å2
<r2> 61.295
(<r2>)1/2 7.829