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

using model chemistry: ROMP2/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-118.186530
Energy at 298.15K-118.192646
HF Energy-117.677667
Nuclear repulsion energy75.748351
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/Def2TZVPP
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' 3247 3247        
2 A' 3166 3166        
3 A' 3099 3099        
4 A' 3025 3025        
5 A' 1507 1507        
6 A' 1496 1496        
7 A' 1419 1419        
8 A' 1188 1188        
9 A' 1034 1034        
10 A' 906 906        
11 A' 389 389        
12 A' 340 340        
13 A' 128 128        
14 A" 3167 3167        
15 A" 3100 3100        
16 A" 3024 3024        
17 A" 1494 1494        
18 A" 1485 1485        
19 A" 1428 1428        
20 A" 1377 1377        
21 A" 1170 1170        
22 A" 950 950        
23 A" 939 939        
24 A" 103 103        

Unscaled Zero Point Vibrational Energy (zpe) 19591.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19591.5 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 ROMP2/Def2TZVPP
ABC
1.24228 0.28232 0.25148

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.010 0.544 0.000
C2 -0.010 -0.200 1.287
C3 -0.010 -0.200 -1.287
H4 0.216 1.599 0.000
H5 -0.778 -0.976 1.291
H6 -0.778 -0.976 -1.291
H7 0.945 -0.711 1.455
H8 -0.183 0.455 2.138
H9 0.945 -0.711 -1.455
H10 -0.183 0.455 -2.138

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48671.48671.07892.13702.13702.14622.14652.14622.1465
C21.48672.57392.22361.09172.79921.09641.08752.94873.4910
C31.48672.57392.22362.79921.09172.94873.49101.09641.0875
H41.07892.22362.22363.04733.04732.82562.45722.82562.4572
H52.13701.09172.79923.04732.58121.75161.76643.25293.7624
H62.13702.79921.09173.04732.58123.25293.76241.75161.7664
H72.14621.09642.94872.82561.75163.25291.75982.91093.9423
H82.14651.08753.49102.45721.76643.76241.75983.94234.2753
H92.14622.94871.09642.82563.25291.75162.91093.94231.7598
H102.14653.49101.08752.45723.76241.76643.94234.27531.7598

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 111.024 C1 C2 H7 111.480
C1 C2 H8 112.059 C1 C3 H6 111.024
C1 C3 H9 111.480 C1 C3 H10 112.059
C2 C1 C3 119.913 C2 C1 H4 119.307
C3 C1 H4 119.307 H5 C2 H7 106.351
H5 C2 H8 108.299 H6 C3 H9 106.351
H6 C3 H10 108.299 H7 C2 H8 107.371
H9 C3 H10 107.371
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROMP2/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.089      
2 C -0.158      
3 C -0.158      
4 H 0.067      
5 H 0.051      
6 H 0.051      
7 H 0.051      
8 H 0.066      
9 H 0.051      
10 H 0.066      


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> 61.076
(<r2>)1/2 7.815