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

using model chemistry: ROHF/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at ROHF/cc-pVQZ
 hartrees
Energy at 0K-117.682893
Energy at 298.15K-117.689440
HF Energy-117.682893
Nuclear repulsion energy75.655885
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 ROHF/cc-pVQZ
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' 3284 3284 47.38      
2 A' 3213 3213 32.50      
3 A' 3176 3176 62.03      
4 A' 3115 3115 58.81      
5 A' 1608 1608 4.84      
6 A' 1606 1606 12.15      
7 A' 1540 1540 2.66      
8 A' 1278 1278 2.01      
9 A' 1143 1143 0.58      
10 A' 923 923 1.56      
11 A' 541 541 18.87      
12 A' 382 382 1.49      
13 A' 191 191 0.11      
14 A" 3214 3214 36.45      
15 A" 3173 3173 10.29      
16 A" 3111 3111 28.16      
17 A" 1600 1600 0.49      
18 A" 1593 1593 0.97      
19 A" 1538 1538 5.13      
20 A" 1475 1475 4.80      
21 A" 1199 1199 0.00      
22 A" 1018 1018 0.30      
23 A" 1007 1007 0.38      
24 A" 148 148 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20538.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 20538.2 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 ROHF/cc-pVQZ
ABC
1.24745 0.27937 0.24996

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.019 0.550 0.000
C2 -0.019 -0.201 1.294
C3 -0.019 -0.201 -1.294
H4 0.424 1.530 0.000
H5 -0.786 -0.967 1.302
H6 -0.786 -0.967 -1.302
H7 0.934 -0.701 1.464
H8 -0.193 0.457 2.136
H9 0.934 -0.701 -1.464
H10 -0.193 0.457 -2.136

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49651.49651.07522.14162.14162.14912.14512.14912.1451
C21.49652.58852.20621.08462.81321.08941.08262.96113.4971
C31.49652.58852.20622.81321.08462.96113.49711.08941.0826
H41.07522.20622.20623.06533.06532.71732.46872.71732.4687
H52.14161.08462.81323.06532.60301.74791.75433.26793.7679
H62.14162.81321.08463.06532.60303.26793.76791.74791.7543
H72.14911.08942.96112.71731.74793.26791.75042.92893.9466
H82.14511.08263.49712.46871.75433.76791.75043.94664.2719
H92.14912.96111.08942.71733.26791.74792.92893.94661.7504
H102.14513.49711.08262.46873.76791.75433.94664.27191.7504

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 111.138 C1 C2 H7 111.453
C1 C2 H8 111.543 C1 C3 H6 111.138
C1 C3 H9 111.453 C1 C3 H10 111.543
C2 C1 C3 119.736 C2 C1 H4 117.222
C3 C1 H4 117.222 H5 C2 H7 107.023
H5 C2 H8 108.084 H6 C3 H9 107.023
H6 C3 H10 108.084 H7 C2 H8 107.388
H9 C3 H10 107.388
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.122      
2 C -0.203      
3 C -0.203      
4 H 0.105      
5 H 0.068      
6 H 0.068      
7 H 0.059      
8 H 0.084      
9 H 0.059      
10 H 0.084      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.283 -0.138 0.000 0.314
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.448 0.585 -0.000
y 0.585 -20.987 0.001
z -0.000 0.001 -21.015
Traceless
 xyz
x -0.448 0.585 -0.000
y 0.585 0.244 0.001
z -0.000 0.001 0.203
Polar
3z2-r20.406
x2-y2-0.461
xy0.585
xz-0.000
yz0.001


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


<r2> (average value of r2) Å2
<r2> 61.270
(<r2>)1/2 7.828