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

using model chemistry: MP4/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 MP4/Def2TZVPP
 hartrees
Energy at 0K-118.246440
Energy at 298.15K-118.252599
HF Energy-117.682693
Nuclear repulsion energy75.472042
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 MP4/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' 3203 3203        
2 A' 3118 3118        
3 A' 3056 3056        
4 A' 2981 2981        
5 A' 1496 1496        
6 A' 1488 1488        
7 A' 1414 1414        
8 A' 1182 1182        
9 A' 1035 1035        
10 A' 893 893        
11 A' 404 404        
12 A' 346 346        
13 A' 142 142        
14 A" 3118 3118        
15 A" 3056 3056        
16 A" 2979 2979        
17 A" 1486 1486        
18 A" 1477 1477        
19 A" 1421 1421        
20 A" 1371 1371        
21 A" 1156 1156        
22 A" 943 943        
23 A" 933 933        
24 A" 109 109        

Unscaled Zero Point Vibrational Energy (zpe) 19402.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19402.7 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 MP4/Def2TZVPP
ABC
1.23632 0.27975 0.24948

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.012 0.546 0.000
C2 -0.012 -0.201 1.293
C3 -0.012 -0.201 -1.293
H4 0.264 1.592 0.000
H5 -0.770 -0.991 1.290
H6 -0.770 -0.991 -1.290
H7 0.953 -0.695 1.474
H8 -0.205 0.456 2.142
H9 0.953 -0.695 -1.474
H10 -0.205 0.456 -2.142

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49291.49291.08202.14442.14442.15522.15252.15522.1525
C21.49292.58582.22741.09452.80521.09991.09082.97183.5025
C31.49292.58582.22742.80521.09452.97183.50251.09991.0908
H41.08202.22742.22743.06633.06632.80692.46942.80692.4694
H52.14441.09452.80523.06632.58001.75791.77163.27033.7672
H62.14442.80521.09453.06632.58003.27033.76721.75791.7716
H72.15521.09992.97182.80691.75793.27031.76472.94763.9676
H82.15251.09083.50252.46941.77163.76721.76473.96764.2841
H92.15522.97181.09992.80693.27031.75792.94763.96761.7647
H102.15253.50251.09082.46943.76721.77163.96764.28411.7647

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 111.012 C1 C2 H7 111.549
C1 C2 H8 111.905 C1 C3 H6 111.012
C1 C3 H9 111.549 C1 C3 H10 111.905
C2 C1 C3 120.002 C2 C1 H4 118.909
C3 C1 H4 118.909 H5 C2 H7 106.469
H5 C2 H8 108.331 H6 C3 H9 106.469
H6 C3 H10 108.331 H7 C2 H8 107.329
H9 C3 H10 107.329
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability