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

using model chemistry: MP2=FULL/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at MP2=FULL/STO-3G
 hartrees
Energy at 0K-116.390859
Energy at 298.15K-116.397097
HF Energy-116.247450
Nuclear repulsion energy74.060949
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 MP2=FULL/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3550 3155 4.66      
2 A' 3513 3123 6.34      
3 A' 3510 3120 3.65      
4 A' 3352 2980 1.52      
5 A' 1735 1542 1.33      
6 A' 1728 1536 3.39      
7 A' 1628 1448 0.44      
8 A' 1314 1168 5.61      
9 A' 1183 1052 0.79      
10 A' 964 857 0.42      
11 A' 537 478 5.25      
12 A' 371 330 0.84      
13 A' 152 135 0.07      
14 A" 3548 3154 1.01      
15 A" 3512 3122 0.37      
16 A" 3353 2980 4.10      
17 A" 1733 1541 0.03      
18 A" 1724 1533 0.05      
19 A" 1626 1445 0.57      
20 A" 1534 1363 20.99      
21 A" 1253 1114 0.05      
22 A" 1071 952 0.00      
23 A" 1041 926 0.29      
24 A" 131 116 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 22032.3 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 19584.5 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 MP2=FULL/STO-3G
ABC
1.19596 0.26713 0.23918

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.020 0.563 0.000
C2 -0.020 -0.207 1.325
C3 -0.020 -0.207 -1.325
H4 0.468 1.550 0.000
H5 -0.762 -1.024 1.304
H6 -0.762 -1.024 -1.304
H7 0.969 -0.661 1.530
H8 -0.262 0.461 2.169
H9 0.969 -0.661 -1.530
H10 -0.262 0.461 -2.169

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.53231.53231.10082.18432.18432.19532.18502.19532.1850
C21.53232.64932.25381.10402.85141.10781.10373.05533.5654
C31.53232.64932.25382.85141.10403.05533.56541.10781.1037
H41.10082.25382.25383.13683.13682.73562.53432.73562.5343
H52.18431.10402.85143.13682.60891.78361.78983.34153.8107
H62.18432.85141.10403.13682.60893.34153.81071.78361.7898
H72.19531.10783.05532.73561.78363.34151.78443.06044.0572
H82.18501.10373.56542.53431.78983.81071.78444.05724.3383
H92.19533.05531.10782.73563.34151.78363.06044.05721.7844
H102.18503.56541.10372.53433.81071.78984.05724.33831.7844

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 110.857 C1 C2 H7 111.500
C1 C2 H8 110.926 C1 C3 H6 110.857
C1 C3 H9 111.500 C1 C3 H10 110.926
C2 C1 C3 119.654 C2 C1 H4 116.785
C3 C1 H4 116.785 H5 C2 H7 107.492
H5 C2 H8 108.329 H6 C3 H9 107.492
H6 C3 H10 108.329 H7 C2 H8 107.582
H9 C3 H10 107.582
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability