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

using model chemistry: MP2=FULL/6-31G

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/6-31G
 hartrees
Energy at 0K-117.850232
Energy at 298.15K-117.856558
HF Energy-117.590554
Nuclear repulsion energy74.743888
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/6-31G
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' 3216 3055 36.18      
2 A' 3137 2980 25.72      
3 A' 3083 2929 60.52      
4 A' 3009 2859 36.03      
5 A' 1574 1496 4.86      
6 A' 1557 1479 13.23      
7 A' 1496 1422 3.59      
8 A' 1239 1177 3.40      
9 A' 1104 1049 0.24      
10 A' 898 853 1.23      
11 A' 444 422 21.02      
12 A' 373 355 5.86      
13 A' 149 142 0.15      
14 A" 3137 2980 26.22      
15 A" 3083 2929 4.77      
16 A" 3007 2857 26.47      
17 A" 1565 1487 1.48      
18 A" 1548 1471 0.69      
19 A" 1482 1408 5.20      
20 A" 1444 1372 7.37      
21 A" 1188 1128 0.18      
22 A" 1007 957 0.57      
23 A" 987 938 0.78      
24 A" 130 124 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19927.9 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 18933.5 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/6-31G
ABC
1.22753 0.27218 0.24352

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.012 0.544 0.000
C2 -0.012 -0.202 1.312
C3 -0.012 -0.202 -1.312
H4 0.283 1.593 0.000
H5 -0.760 -1.010 1.302
H6 -0.760 -1.010 -1.302
H7 0.967 -0.673 1.522
H8 -0.242 0.466 2.153
H9 0.967 -0.673 -1.522
H10 -0.242 0.466 -2.153

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.50901.50901.08962.16102.16102.18092.16672.18092.1667
C21.50902.62322.24281.10132.83571.10621.09833.03473.5357
C31.50902.62322.24282.83571.10133.03473.53571.10621.0983
H41.08962.24282.24283.09183.09182.81462.48652.81462.4865
H52.16101.10132.83573.09182.60311.77261.78063.32663.7920
H62.16102.83571.10133.09182.60313.32663.79201.77261.7806
H72.18091.10623.03472.81461.77263.32661.77653.04414.0328
H82.16671.09833.53572.48651.78063.79201.77654.03284.3058
H92.18093.03471.10622.81463.32661.77263.04414.03281.7765
H102.16673.53571.09832.48653.79201.78064.03284.30581.7765

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 110.796 C1 C2 H7 112.091
C1 C2 H8 111.425 C1 C3 H6 110.796
C1 C3 H9 112.091 C1 C3 H10 111.425
C2 C1 C3 120.727 C2 C1 H4 118.431
C3 C1 H4 118.431 H5 C2 H7 106.829
H5 C2 H8 108.094 H6 C3 H9 106.829
H6 C3 H10 108.094 H7 C2 H8 107.385
H9 C3 H10 107.385
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability