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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G(2df,p)
 hartrees
Energy at 0K-118.304978
Energy at 298.15K-118.311070
HF Energy-118.304978
Nuclear repulsion energy75.089263
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 PBEPBEultrafine/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' 3111 3079 26.93      
2 A' 3039 3007 16.90      
3 A' 2974 2943 40.15      
4 A' 2883 2853 42.19      
5 A' 1440 1426 3.76      
6 A' 1428 1413 10.33      
7 A' 1357 1343 2.89      
8 A' 1139 1127 3.21      
9 A' 996 986 0.34      
10 A' 875 866 1.86      
11 A' 410 405 16.93      
12 A' 357 353 4.03      
13 A' 118 116 0.01      
14 A" 3040 3008 19.78      
15 A" 2974 2943 8.60      
16 A" 2877 2847 30.49      
17 A" 1429 1415 0.07      
18 A" 1416 1402 1.02      
19 A" 1358 1344 8.05      
20 A" 1319 1306 2.68      
21 A" 1139 1127 0.22      
22 A" 906 897 1.96      
23 A" 902 892 0.20      
24 A" 115 114 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 18799.3 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 18605.6 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 PBEPBEultrafine/6-31G(2df,p)
ABC
1.24555 0.27565 0.24671

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.011 0.533 0.000
C2 -0.011 -0.196 1.300
C3 -0.011 -0.196 -1.300
H4 0.227 1.600 0.000
H5 -0.705 -1.057 1.284
H6 -0.705 -1.057 -1.284
H7 0.987 -0.619 1.551
H8 -0.294 0.456 2.142
H9 0.987 -0.619 -1.551
H10 -0.294 0.456 -2.142

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49021.49021.09422.15812.15812.17472.16242.17472.1624
C21.49022.59982.23041.10582.81041.11331.10223.05023.5149
C31.49022.59982.23042.81041.10583.05023.51491.11331.1022
H41.09422.23042.23043.09533.09532.81242.48442.81242.4844
H52.15811.10582.81043.09532.56791.76851.78753.33063.7681
H62.15812.81041.10583.09532.56793.33063.76811.76851.7875
H72.17471.11333.05022.81241.76853.33061.77403.10204.0546
H82.16241.10223.51492.48441.78753.76811.77404.05464.2850
H92.17473.05021.11332.81243.33061.76853.10204.05461.7740
H102.16243.51491.10222.48443.76811.78754.05464.28501.7740

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 111.608 C1 C2 H7 112.489
C1 C2 H8 112.182 C1 C3 H6 111.608
C1 C3 H9 112.489 C1 C3 H10 112.182
C2 C1 C3 121.444 C2 C1 H4 118.508
C3 C1 H4 118.508 H5 C2 H7 105.677
H5 C2 H8 108.100 H6 C3 H9 105.677
H6 C3 H10 108.100 H7 C2 H8 106.398
H9 C3 H10 106.398
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.040      
2 C -0.422      
3 C -0.422      
4 H 0.100      
5 H 0.129      
6 H 0.129      
7 H 0.131      
8 H 0.132      
9 H 0.131      
10 H 0.132      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.161 -0.128 0.000 0.206
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.165 0.268 0.000
y 0.268 -20.245 0.000
z 0.000 0.000 -20.215
Traceless
 xyz
x -0.935 0.268 0.000
y 0.268 0.445 0.000
z 0.000 0.000 0.490
Polar
3z2-r20.980
x2-y2-0.920
xy0.268
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.231 0.039 0.000
y 0.039 5.078 0.000
z 0.000 0.000 6.143


<r2> (average value of r2) Å2
<r2> 61.708
(<r2>)1/2 7.855