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

using model chemistry: CCSD(T)/6-31G(2df,p)

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)/6-31G(2df,p)
 hartrees
Energy at 0K-118.184161
Energy at 298.15K-118.190380
HF Energy-117.652405
Nuclear repulsion energy75.270303
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)/6-31G(2df,p)
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' 3211 3211        
2 A' 3144 3144        
3 A' 3089 3089        
4 A' 3011 3011        
5 A' 1515 1515        
6 A' 1507 1507        
7 A' 1432 1432        
8 A' 1191 1191        
9 A' 1048 1048        
10 A' 893 893        
11 A' 421 421        
12 A' 352 352        
13 A' 145 145        
14 A" 3145 3145        
15 A" 3089 3089        
16 A" 3008 3008        
17 A" 1506 1506        
18 A" 1495 1495        
19 A" 1431 1431        
20 A" 1380 1380        
21 A" 1160 1160        
22 A" 950 950        
23 A" 940 940        
24 A" 123 123        

Unscaled Zero Point Vibrational Energy (zpe) 19592.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19592.2 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)/6-31G(2df,p)
ABC
1.23354 0.27774 0.24791

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G(2df,p)

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 1.297
C3 -0.013 -0.201 -1.297
H4 0.291 1.588 0.000
H5 -0.756 -1.007 1.289
H6 -0.756 -1.007 -1.289
H7 0.961 -0.676 1.495
H8 -0.231 0.455 2.144
H9 0.961 -0.676 -1.495
H10 -0.231 0.455 -2.144

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49691.49691.08552.15072.15072.16312.15722.16312.1572
C21.49692.59452.23061.09632.80891.10191.09342.99573.5103
C31.49692.59452.23062.80891.09632.99573.51031.10191.0934
H41.08552.23062.23063.08103.08102.79462.48062.79462.4806
H52.15071.09632.80893.08102.57771.76091.77393.28793.7685
H62.15072.80891.09633.08102.57773.28793.76851.76091.7739
H72.16311.10192.99572.79461.76093.28791.76662.99103.9935
H82.15721.09343.51032.48061.77393.76851.76663.99354.2886
H92.16312.99571.10192.79463.28791.76092.99103.99351.7666
H102.15723.51031.09342.48063.76851.77393.99354.28861.7666

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 111.119 C1 C2 H7 111.780
C1 C2 H8 111.830 C1 C3 H6 111.119
C1 C3 H9 111.780 C1 C3 H10 111.830
C2 C1 C3 120.134 C2 C1 H4 118.615
C3 C1 H4 118.615 H5 C2 H7 106.463
H5 C2 H8 108.217 H6 C3 H9 106.463
H6 C3 H10 108.217 H7 C2 H8 107.174
H9 C3 H10 107.174
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability