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

using model chemistry: ROMP2/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at ROMP2/cc-pVDZ
 hartrees
Energy at 0K-118.056744
Energy at 298.15K-118.062970
HF Energy-117.640479
Nuclear repulsion energy75.037427
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 ROMP2/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3232 3232        
2 A' 3177 3177        
3 A' 3119 3119        
4 A' 3032 3032        
5 A' 1488 1488        
6 A' 1481 1481        
7 A' 1409 1409        
8 A' 1185 1185        
9 A' 1037 1037        
10 A' 909 909        
11 A' 421 421        
12 A' 355 355        
13 A' 153 153        
14 A" 3179 3179        
15 A" 3120 3120        
16 A" 3030 3030        
17 A" 1480 1480        
18 A" 1470 1470        
19 A" 1426 1426        
20 A" 1363 1363        
21 A" 1174 1174        
22 A" 937 937        
23 A" 935 935        
24 A" 117 117        

Unscaled Zero Point Vibrational Energy (zpe) 19614.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19614.9 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 ROMP2/cc-pVDZ
ABC
1.22025 0.27738 0.24752

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.014 0.548 0.000
C2 -0.014 -0.201 1.297
C3 -0.014 -0.201 -1.297
H4 0.312 1.594 0.000
H5 -0.772 -1.005 1.293
H6 -0.772 -1.005 -1.293
H7 0.964 -0.691 1.486
H8 -0.219 0.460 2.155
H9 0.964 -0.691 -1.486
H10 -0.219 0.460 -2.155

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49751.49751.09522.15802.15802.16812.16602.16812.1660
C21.49752.59362.23791.10492.81521.11061.10192.99013.5199
C31.49752.59362.23792.81521.10492.99013.51991.11061.1019
H41.09522.23792.23793.09813.09812.80242.49182.80242.4918
H52.15801.10492.81523.09812.58511.77481.78753.29123.7861
H62.15802.81521.10493.09812.58513.29123.78611.77481.7875
H72.16811.11062.99012.80241.77483.29121.78092.97163.9971
H82.16601.10193.51992.49181.78753.78611.78093.99714.3091
H92.16812.99011.11062.80243.29121.77482.97163.99711.7809
H102.16603.51991.10192.49183.78611.78753.99714.30911.7809

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 111.141 C1 C2 H7 111.605
C1 C2 H8 111.975 C1 C3 H6 111.141
C1 C3 H9 111.605 C1 C3 H10 111.975
C2 C1 C3 119.987 C2 C1 H4 118.517
C3 C1 H4 118.517 H5 C2 H7 106.466
H5 C2 H8 108.183 H6 C3 H9 106.466
H6 C3 H10 108.183 H7 C2 H8 107.208
H9 C3 H10 107.208
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROMP2/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.203      
2 C -0.026      
3 C -0.026      
4 H 0.036      
5 H 0.035      
6 H 0.035      
7 H 0.036      
8 H 0.039      
9 H 0.036      
10 H 0.039      


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 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> 61.929
(<r2>)1/2 7.869