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

using model chemistry: CCSD(T)/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at CCSD(T)/6-31+G**
 hartrees
Energy at 0K-118.125728
Energy at 298.15K-118.131970
HF Energy-117.649040
Nuclear repulsion energy75.293481
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 CCSD(T)/6-31+G**
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' 3222 3092        
2 A' 3158 3031        
3 A' 3099 2973        
4 A' 3018 2896        
5 A' 1529 1468        
6 A' 1516 1454        
7 A' 1453 1394        
8 A' 1206 1157        
9 A' 1064 1021        
10 A' 901 864        
11 A' 425 408        
12 A' 356 342        
13 A' 155 149        
14 A" 3159 3031        
15 A" 3099 2973        
16 A" 3015 2893        
17 A" 1519 1458        
18 A" 1506 1445        
19 A" 1455 1396        
20 A" 1401 1344        
21 A" 1170 1123        
22 A" 961 922        
23 A" 953 915        
24 A" 114 110        

Unscaled Zero Point Vibrational Energy (zpe) 19726.0 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 18929.0 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 CCSD(T)/6-31+G**
ABC
1.23344 0.27785 0.24805

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 0.546 0.000
C2 -0.013 -0.201 1.298
C3 -0.013 -0.201 -1.298
H4 0.298 1.586 0.000
H5 -0.773 -0.990 1.294
H6 -0.773 -0.990 -1.294
H7 0.953 -0.695 1.482
H8 -0.210 0.460 2.144
H9 0.953 -0.695 -1.482
H10 -0.210 0.460 -2.144

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49761.49761.08522.14762.14762.16162.15482.16162.1548
C21.49762.59532.23041.09522.81351.10081.09202.98443.5102
C31.49762.59532.23042.81351.09522.98443.51021.10081.0920
H41.08522.23042.23043.07543.07542.79802.47452.79802.4745
H52.14761.09522.81353.07542.58781.76121.77273.28253.7735
H62.14762.81351.09523.07542.58783.28253.77351.76121.7727
H72.16161.10082.98442.79801.76123.28251.76782.96493.9799
H82.15481.09203.51022.47451.77273.77351.76783.97994.2881
H92.16162.98441.10082.79803.28251.76122.96493.97991.7678
H102.15483.51021.09202.47453.77351.77273.97994.28811.7678

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 110.895 C1 C2 H7 111.676
C1 C2 H8 111.674 C1 C3 H6 110.895
C1 C3 H9 111.676 C1 C3 H10 111.674
C2 C1 C3 120.106 C2 C1 H4 118.568
C3 C1 H4 118.568 H5 C2 H7 106.642
H5 C2 H8 108.284 H6 C3 H9 106.642
H6 C3 H10 108.284 H7 C2 H8 107.446
H9 C3 H10 107.446
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability