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

using model chemistry: B1B95/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-118.425233
Energy at 298.15K-118.431344
HF Energy-118.425233
Nuclear repulsion energy75.672079
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 B1B95/6-311G*
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' 3182 3050 31.22      
2 A' 3113 2984 18.35      
3 A' 3042 2916 54.05      
4 A' 2960 2837 52.98      
5 A' 1485 1424 4.67      
6 A' 1472 1411 16.64      
7 A' 1401 1343 5.46      
8 A' 1172 1123 2.78      
9 A' 1019 977 0.13      
10 A' 897 860 2.25      
11 A' 395 378 16.94      
12 A' 352 338 11.09      
13 A' 119 114 0.39      
14 A" 3115 2986 26.76      
15 A" 3042 2916 7.68      
16 A" 2955 2833 27.33      
17 A" 1472 1411 0.60      
18 A" 1463 1403 2.01      
19 A" 1408 1350 10.75      
20 A" 1359 1303 1.07      
21 A" 1161 1113 0.24      
22 A" 934 895 1.48      
23 A" 929 891 0.06      
24 A" 112 108 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 19279.3 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 18481.1 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 B1B95/6-311G*
ABC
1.25735 0.28036 0.25058

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

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 1.290
C3 -0.011 -0.196 -1.290
H4 0.219 1.593 0.000
H5 -0.745 -1.009 1.292
H6 -0.745 -1.009 -1.292
H7 0.963 -0.669 1.498
H8 -0.230 0.460 2.133
H9 0.963 -0.669 -1.498
H10 -0.230 0.460 -2.133

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48221.48221.08372.14172.14172.15332.14572.15332.1457
C21.48222.58012.21751.09542.80451.10191.09102.99073.4925
C31.48222.58012.21752.80451.09542.99073.49251.10191.0910
H41.08372.21752.21753.06043.06042.81262.45632.81262.4563
H52.14171.09542.80453.06042.58331.75401.77003.28883.7623
H62.14172.80451.09543.06042.58333.28883.76231.75401.7700
H72.15331.10192.99072.81261.75403.28881.76082.99603.9853
H82.14571.09103.49252.45631.77003.76231.76083.98534.2664
H92.15332.99071.10192.81263.28881.75402.99603.98531.7608
H102.14573.49251.09102.45633.76231.77003.98534.26641.7608

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 111.505 C1 C2 H7 112.041
C1 C2 H8 112.099 C1 C3 H6 111.505
C1 C3 H9 112.041 C1 C3 H10 112.099
C2 C1 C3 121.000 C2 C1 H4 118.768
C3 C1 H4 118.768 H5 C2 H7 105.929
H5 C2 H8 108.108 H6 C3 H9 105.929
H6 C3 H10 108.108 H7 C2 H8 106.824
H9 C3 H10 106.824
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.204      
2 C -0.336      
3 C -0.336      
4 H 0.123      
5 H 0.123      
6 H 0.123      
7 H 0.125      
8 H 0.128      
9 H 0.125      
10 H 0.128      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.176 -0.133 0.000 0.221
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.569 0.327 0.000
y 0.327 -20.545 0.000
z 0.000 0.000 -20.541
Traceless
 xyz
x -1.027 0.327 0.000
y 0.327 0.510 0.000
z 0.000 0.000 0.516
Polar
3z2-r21.033
x2-y2-1.025
xy0.327
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.429 0.024 0.000
y 0.024 5.227 0.000
z 0.000 0.000 6.141


<r2> (average value of r2) Å2
<r2> 61.122
(<r2>)1/2 7.818