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

using model chemistry: QCISD(T)=FULL/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-118.306036
Energy at 298.15K-118.312204
HF Energy-117.676598
Nuclear repulsion energy75.558658
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/6-311+G(3df,2p)
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' 3188 3188        
2 A' 3116 3116        
3 A' 3050 3050        
4 A' 2977 2977        
5 A' 1505 1505        
6 A' 1495 1495        
7 A' 1422 1422        
8 A' 1186 1186        
9 A' 1036 1036        
10 A' 898 898        
11 A' 396 396        
12 A' 342 342        
13 A' 139 139        
14 A" 3117 3117        
15 A" 3050 3050        
16 A" 2973 2973        
17 A" 1492 1492        
18 A" 1484 1484        
19 A" 1425 1425        
20 A" 1373 1373        
21 A" 1158 1158        
22 A" 947 947        
23 A" 937 937        
24 A" 117 117        

Unscaled Zero Point Vibrational Energy (zpe) 19409.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19409.8 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/6-311+G(3df,2p)
ABC
1.23832 0.28068 0.25021

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.012 0.545 0.000
C2 -0.012 -0.200 1.290
C3 -0.012 -0.200 -1.290
H4 0.251 1.596 0.000
H5 -0.782 -0.978 1.297
H6 -0.782 -0.978 -1.297
H7 0.946 -0.712 1.462
H8 -0.184 0.458 2.143
H9 0.946 -0.712 -1.462
H10 -0.184 0.458 -2.143

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48991.48991.08302.14332.14332.15262.15122.15262.1512
C21.48992.58072.22661.09432.80951.09971.09012.95863.4995
C31.48992.58072.22662.80951.09432.95863.49951.09971.0901
H41.08302.22662.22663.06113.06112.81862.46462.81862.4646
H52.14331.09432.80953.06112.59441.75591.76983.26613.7748
H62.14332.80951.09433.06112.59443.26613.77481.75591.7698
H72.15261.09972.95862.81861.75593.26611.76322.92333.9542
H82.15121.09013.49952.46461.76983.77481.76323.95424.2850
H92.15262.95861.09972.81863.26611.75592.92333.95421.7632
H102.15123.49951.09012.46463.77481.76983.95424.28501.7632

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 111.149 C1 C2 H7 111.568
C1 C2 H8 112.053 C1 C3 H6 111.149
C1 C3 H9 111.568 C1 C3 H10 112.053
C2 C1 C3 120.010 C2 C1 H4 119.014
C3 C1 H4 119.014 H5 C2 H7 106.317
H5 C2 H8 108.228 H6 C3 H9 106.317
H6 C3 H10 108.228 H7 C2 H8 107.256
H9 C3 H10 107.256
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability