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

using model chemistry: B2PLYP/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-118.337324
Energy at 298.15K-118.343517
HF Energy-118.200369
Nuclear repulsion energy75.408687
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/6-31+G**
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' 3222 3069 29.28      
2 A' 3146 2996 20.29      
3 A' 3079 2933 49.00      
4 A' 3001 2859 49.97      
5 A' 1518 1446 5.51      
6 A' 1506 1434 16.20      
7 A' 1440 1371 3.83      
8 A' 1198 1141 2.00      
9 A' 1048 999 0.06      
10 A' 899 857 1.81      
11 A' 404 385 18.62      
12 A' 353 337 15.68      
13 A' 138 132 0.73      
14 A" 3147 2997 27.57      
15 A" 3079 2933 7.99      
16 A" 2998 2855 28.06      
17 A" 1506 1434 1.40      
18 A" 1496 1424 1.18      
19 A" 1440 1372 8.34      
20 A" 1390 1324 2.90      
21 A" 1166 1110 0.19      
22 A" 957 911 1.15      
23 A" 951 906 0.01      
24 A" 119 114 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 19601.0 cm-1
Scaled (by 0.9524) Zero Point Vibrational Energy (zpe) 18668.0 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/6-31+G**
ABC
1.24327 0.27839 0.24863

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.011 0.541 0.000
C2 -0.011 -0.199 1.296
C3 -0.011 -0.199 -1.296
H4 0.248 1.593 0.000
H5 -0.771 -0.989 1.302
H6 -0.771 -0.989 -1.302
H7 0.953 -0.697 1.483
H8 -0.202 0.463 2.143
H9 0.953 -0.697 -1.483
H10 -0.202 0.463 -2.143

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49201.49201.08422.14732.14732.15912.15262.15912.1526
C21.49202.59142.22701.09562.81921.10141.09172.98333.5067
C31.49202.59142.22702.81921.09562.98333.50671.10141.0917
H41.08422.22702.22703.06593.06592.81842.46422.81842.4642
H52.14731.09562.81923.06592.60381.75771.77123.28833.7809
H62.14732.81921.09563.06592.60383.28833.78091.75771.7712
H72.15911.10142.98332.81841.75773.28831.76472.96623.9782
H82.15261.09173.50672.46421.77123.78091.76473.97824.2854
H92.15912.98331.10142.81843.28831.75772.96623.97821.7647
H102.15263.50671.09172.46423.78091.77123.97824.28541.7647

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 111.237 C1 C2 H7 111.835
C1 C2 H8 111.910 C1 C3 H6 111.237
C1 C3 H9 111.835 C1 C3 H10 111.910
C2 C1 C3 120.551 C2 C1 H4 118.780
C3 C1 H4 118.780 H5 C2 H7 106.275
H5 C2 H8 108.143 H6 C3 H9 106.275
H6 C3 H10 108.143 H7 C2 H8 107.160
H9 C3 H10 107.160
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.055      
2 C -0.523      
3 C -0.523      
4 H 0.132      
5 H 0.141      
6 H 0.141      
7 H 0.144      
8 H 0.145      
9 H 0.144      
10 H 0.145      


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 4.778 -0.066 0.000
y -0.066 5.328 0.000
z 0.000 0.000 5.969


<r2> (average value of r2) Å2
<r2> 61.684
(<r2>)1/2 7.854