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

using model chemistry: B3LYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at B3LYP/6-31G*
 hartrees
Energy at 0K-118.478154
Energy at 298.15K-118.484319
HF Energy-118.478154
Nuclear repulsion energy75.208035
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 B3LYP/6-31G*
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' 3180 3054 34.60      
2 A' 3103 2979 23.38      
3 A' 3044 2923 52.36      
4 A' 2959 2841 55.90      
5 A' 1522 1462 3.54      
6 A' 1511 1451 11.15      
7 A' 1443 1386 2.36      
8 A' 1193 1145 3.19      
9 A' 1049 1007 0.32      
10 A' 890 855 1.65      
11 A' 412 395 15.47      
12 A' 361 347 8.02      
13 A' 128 123 0.12      
14 A" 3103 2980 29.07      
15 A" 3042 2921 9.60      
16 A" 2953 2836 26.71      
17 A" 1511 1451 0.60      
18 A" 1500 1441 0.90      
19 A" 1436 1379 4.26      
20 A" 1388 1333 5.84      
21 A" 1158 1112 0.06      
22 A" 955 918 1.63      
23 A" 950 912 0.10      
24 A" 116 112 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 19452.8 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 18680.5 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 B3LYP/6-31G*
ABC
1.24950 0.27577 0.24686

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.012 0.535 0.000
C2 -0.012 -0.197 1.301
C3 -0.012 -0.197 -1.301
H4 0.246 1.591 0.000
H5 -0.734 -1.026 1.297
H6 -0.734 -1.026 -1.297
H7 0.972 -0.650 1.527
H8 -0.257 0.462 2.142
H9 0.972 -0.650 -1.527
H10 -0.257 0.462 -2.142

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49281.49281.08782.15432.15432.16832.15702.16832.1570
C21.49282.60212.22691.09932.82141.10611.09603.02803.5139
C31.49282.60212.22692.82141.09933.02803.51391.10611.0960
H41.08782.22692.22693.08143.08142.80752.47312.80752.4731
H52.15431.09932.82143.08142.59481.76191.77623.32083.7776
H62.15432.82141.09933.08142.59483.32083.77761.76191.7762
H72.16831.10613.02802.80751.76193.32081.76723.05364.0253
H82.15701.09603.51392.47311.77623.77761.76724.02534.2836
H92.16833.02801.10612.80753.32081.76193.05364.02531.7672
H102.15703.51391.09602.47313.77761.77624.02534.28361.7672

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 111.521 C1 C2 H7 112.237
C1 C2 H8 111.948 C1 C3 H6 111.521
C1 C3 H9 112.237 C1 C3 H10 111.948
C2 C1 C3 121.277 C2 C1 H4 118.451
C3 C1 H4 118.451 H5 C2 H7 106.051
H5 C2 H8 108.009 H6 C3 H9 106.051
H6 C3 H10 108.009 H7 C2 H8 106.742
H9 C3 H10 106.742
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.090      
2 C -0.465      
3 C -0.465      
4 H 0.127      
5 H 0.148      
6 H 0.148      
7 H 0.148      
8 H 0.150      
9 H 0.148      
10 H 0.150      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.173 -0.107 0.000 0.204
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.250 0.311 0.000
y 0.311 -20.336 0.000
z 0.000 0.000 -20.358
Traceless
 xyz
x -0.903 0.311 0.000
y 0.311 0.468 0.000
z 0.000 0.000 0.435
Polar
3z2-r20.871
x2-y2-0.914
xy0.311
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.917 0.063 0.000
y 0.063 4.776 0.000
z 0.000 0.000 5.554


<r2> (average value of r2) Å2
<r2> 61.665
(<r2>)1/2 7.853