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

using model chemistry: QCISD(T)=FULL/aug-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 QCISD(T)=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-118.149135
Energy at 298.15K-118.155273
HF Energy-117.648375
Nuclear repulsion energy74.751937
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 QCISD(T)=FULL/aug-cc-pVDZ
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' 3174 3079        
2 A' 3099 3006        
3 A' 3034 2943        
4 A' 2957 2869        
5 A' 1470 1426        
6 A' 1462 1418        
7 A' 1392 1350        
8 A' 1168 1133        
9 A' 1015 985        
10 A' 888 861        
11 A' 392 380        
12 A' 333 323        
13 A' 143 139        
14 A" 3099 3007        
15 A" 3035 2944        
16 A" 2954 2865        
17 A" 1459 1416        
18 A" 1450 1407        
19 A" 1406 1364        
20 A" 1349 1309        
21 A" 1148 1114        
22 A" 926 898        
23 A" 921 894        
24 A" 115 112        

Unscaled Zero Point Vibrational Energy (zpe) 19194.0 cm-1
Scaled (by 0.9701) Zero Point Vibrational Energy (zpe) 18620.1 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 QCISD(T)=FULL/aug-cc-pVDZ
ABC
1.21119 0.27496 0.24523

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.012 0.550 0.000
C2 -0.012 -0.202 1.303
C3 -0.012 -0.202 -1.303
H4 0.272 1.609 0.000
H5 -0.789 -0.992 1.307
H6 -0.789 -0.992 -1.307
H7 0.960 -0.713 1.481
H8 -0.195 0.466 2.162
H9 0.960 -0.713 -1.481
H10 -0.195 0.466 -2.162

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.50501.50501.09652.16532.16532.17612.17162.17612.1716
C21.50502.60692.24951.10752.83561.11291.10372.99373.5344
C31.50502.60692.24952.83561.10752.99373.53441.11291.1037
H41.09652.24952.24953.09823.09822.83852.48982.83852.4898
H52.16531.10752.83563.09822.61391.78001.79193.30343.8098
H62.16532.83561.10753.09822.61393.30343.80981.78001.7919
H72.17611.11292.99372.83851.78003.30341.78602.96284.0003
H82.17161.10373.53442.48981.79193.80981.78604.00034.3244
H92.17612.99371.11292.83853.30341.78002.96284.00031.7860
H102.17163.53441.10372.48983.80981.79194.00034.32441.7860

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 111.048 C1 C2 H7 111.575
C1 C2 H8 111.780 C1 C3 H6 111.048
C1 C3 H9 111.575 C1 C3 H10 111.780
C2 C1 C3 120.021 C2 C1 H4 118.861
C3 C1 H4 118.861 H5 C2 H7 106.572
H5 C2 H8 108.268 H6 C3 H9 106.572
H6 C3 H10 108.268 H7 C2 H8 107.361
H9 C3 H10 107.361
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability